Abstract: An optical module is provided with a columnar protrusion over the entire pickup area (EP) for automatic suction by a mounting device at the center of the upper surface of a fiber holding carrier. The protrusion secures a dedicated pickup area (EP1) on a top surface. When an extra length of an optical fiber extending from an optical device is routed and held between a pair of wall portions, the extra length including a tip portion is held in a storage area of the fiber holding carrier by a restoring force caused by being pressed against the wall portions.

Abstract: Fiber optic connectors, connector housings, connectorized cable assemblies, and methods for the connectorization of cable assemblies are provided with particular cable adapter features, adapter extensions, multi-diametrical sealing flexures, subcutaneous sealing elements, and combinations thereof, for improved connector and cable performance, integrity, and durability.

Abstract: A semiconductor package and a manufacturing method thereof are provided. The semiconductor package includes a photonic die, an encapsulant and a wave guide structure. The photonic die includes: a substrate, having a wave guide pattern formed at front surface; and a dielectric layer, covering the front surface of the substrate, and having an opening overlapped with an end portion of the wave guide pattern. The encapsulant laterally encapsulates the photonic die. The wave guide structure lies on the encapsulant and the photonic die, and extends into the opening of the dielectric layer, to be optically coupled to the wave guide pattern.

Abstract: A method of manufacturing a light receiving module according to an embodiment includes positioning a light receiving element, positioning a lens that causes light to converge on the light receiving element, and positioning an optical fiber such that an end surface of the optical fiber is located at a position spaced apart from the lens by a certain distance. The certain distance is a distance that is offset from a focal length of the lens.

Abstract: A method and apparatus for mounting optical components is described. The apparatus is suitable for mounting multiple optical components and comprises a baseplate having opposing first and second surfaces. Recesses or apertures are formed within the baseplate and are located upon the first or second surfaces so as to define thermally activated optic mounting areas. Pillars are then located within the thermally activated optic mounting areas and these provide a means for attaching the optical component to the baseplate. The employment of the recesses or apertures act to significantly reduce the thermal conduction throughout the baseplate. As a result preferential heating can be provided to the one or more thermally activated optic mounting areas while maintaining the baseplate with a desired mechanical strength. The optical mounting apparatus exhibits a high thermal stability thus making the apparatus ideally suited for use within commercial optical system.

Abstract: An apparatus and a method for assembling optical module. The apparatus includes: a plurality of fixtures, an alignment mechanism, a power supply, a spectroscopic prism with a light incident surface close to the plurality of optical modules to be aligned, a first color image collecting means close to a first light emitting surface of the spectroscopic prism and a second color image collecting means with a second light emitting surface of the spectroscopic prism; the controller is configured to determine a light spot that does not meet a quality requirement according to the positions and/or sizes of the plurality of imaging light spots, and generate a corresponding aligning instruction, and determine a to-be-assembled lens necessary to be adjusted according to a color of the light spot that does not meet quality requirements, and output the aligning instruction to an alignment mechanism to adjust a position of the lens necessary to be adjusted.

Abstract: The present disclosure relates to lensed optical fiber connector ferrule end faces having molded contact surfaces. The contact surfaces reduce ferrule end face contact area and thereby reduce the influence of trapped dust and debris on lens angular misalignment.

Abstract: An illuminator including a receptacle for connecting a light cable to an illuminator. The receptacle includes a clamp assembly having a plurality of clamping jaws that are moveable from an open configuration in which a connecter of the light cable can be positioned between the clamping jaws for receiving light traveling in a light pathway in the illuminator to a closed configuration in which the clamping jaws completely block the light pathway, and a clutch that is movable between an engaged position for holding the clamping jaws in the open configuration and a disengaged position for allowing the clamping jaws to move to a gripped configuration and to the closed configuration, the clutch can be pushed by the connector when the connector is positioned between the clamping jaws to move the clutch out of the engaged position so that the clamp assembly moves the clamping jaws to the gripped configuration.

Abstract: Disclosed is a control system for controlling a plurality of user terminals. The control system includes at least: a control device including a processor, and configured to determine a command to be executed by the plurality of user terminals located in a concert hall or stadium; a transmitter configured to transmit a wireless signal corresponding to the determined command; a plurality of receivers, each of which is connected to a respective user terminal of the plurality of user terminals, receives the wireless signal, and transmits the received wireless signal to the respective user terminal; and the plurality of user terminals, each of which is configured to perform a command corresponding to the wireless signal transmitted from a respective receiver of the plurality of receivers.

Abstract: Fiber optic connectors, connector housings, connectorized cable assemblies, and methods for the connectorization of cable assemblies are provided with particular cable adapter features, adapter extensions, multi-diametrical sealing flexures, subcutaneous sealing elements, and combinations thereof, for improved connector and cable performance, integrity, and durability.

Abstract: An all-fiber airtight packaging structure with semiconductor saturable absorber mirror includes a ceramic optical fiber ferrule connector, a SESAM, a SESAM fixed block, a TEC chilling plate, a sealing shell, and a cover plate. The cover plate seals the sealing shell by connecting to a sealing shell surface. The TEC chilling plate and the SESAM fixed block are set in the sealing shell. The SESAM fixed block is located above the TEC chilling plate. The SESAM is pasted on the SESAM fixed block. A sealing shell central hole is defined in the sealing shell. The ceramic optical fiber ferrule connector is entered into the sealing shell through the sealing shell central hole, and an output end of ceramic optical fiber ferrule connector is opposited to an end of SESAM which is mounted on the SESAM fixed block.

Abstract: A first photonic die has a first coupling edge and a first die surface, and comprises: a first waveguide extending in proximity to the first coupling edge; a portion of the first die surface forming an alignment edge substantially parallel to the first waveguide; and a first alignment feature etched into or formed adjacent to the first coupling edge. A second photonic die has a second coupling edge and a second die surface, and comprises: a second waveguide extending in proximity to the second coupling edge; a portion of the second die surface configured to form a receptacle sized to constrain a position of the alignment edge; and a second alignment feature etched into or formed adjacent to the second coupling edge and configured to enable alignment with the first alignment feature when the first photonic die and the second photonic die are substantially aligned with each other.

Abstract: The semiconductor module includes a first semiconductor chip and a second semiconductor chip. The first semiconductor chip includes an optical device such as an optical waveguide and wiring formed over the optical device. The second semiconductor chip include semiconductor elements such as MISFET, and wiring formed over the semiconductor elements. A top surface of the first semiconductor chip is laminated with a top surface of the second semiconductor chip such that the first and second wirings are directly contacted with each other.

Abstract: A method for the production of a lighting device for a motor vehicle, including a transparent tube which surrounds an optical fiber connectable to a light source is positioned on a holder in such a way that the tube comes in contact with the holder in at least one area, wherein the contact area between the tube and the holder is subjected to laser radiation so that the tube is welded to the holder by means of a welding process.

Abstract: A method of producing a housing cover includes providing a cover blank having a mounting surface formed on an underside; connecting the underside of the cover blank to a silicon slice; creating at least one opening in the silicon slice to expose at least part of the mounting surface; arranging a base metallization on the exposed part of the mounting surface; and removing the silicon slice.

Abstract: An optical receptacle includes: an optical receptacle body; two supporters which are connected to a respective end of the optical receptacle body, wherein each supporter is connected to one end of the optical receptacle body at a central portion of the respective supporter, and the two supporters face each other with a space therebetween; and four adhesive reservoirs which are disposed at respective four corners of the optical receptacle in plan view, wherein each of the adhesive reservoirs is a through hole or a recess, and the through hole or the recess is surrounded circumferentially by the supporter. The optical receptacle body and the two supporters together have a plane symmetrical shape with respect to a plane parallel to an optical axis of the light emitted from each of the second optical surfaces. The four adhesive reservoirs are disposed plane symmetrically with respect to the plane.

Abstract: The light receptacle has: a light transmitting light receptacle main body (130); support parts (140) disposed on both ends of the light receptacle main body (130); first optical surfaces (132) to which light emitted by light-emitting elements (114) is made incident; second optical surfaces (136) that output light made incident at the plurality of first optical surfaces (132) toward the end surfaces of a plurality of light transmitting bodies (116); and four adhesive holding parts (142) that are through holes or recesses with the entire periphery thereof surrounded by the support parts and that are disposed at the four corners of the light receptacle (120) in a plane view. The light receptacle main body (130) and the support parts (140) have a plane-symmetrical shape, and the four adhesive holding parts (142) are disposed in plane-symmetrical positions.

Abstract: This disclosure generally relates to high-speed fiber optic networks that use light signals to transmit data over a network. The disclosed subject matter includes devices and methods relating to lens receptacles and/or optoelectronic subassemblies. In some aspects, the disclosed devices and methods relate to a lens receptacle including a receptacle body extending between a receptacle top and a receptacle bottom, the receptacle body including: a port body defining a receptacle port with a port opening at the receptacle top; a receptacle window defining a base of the receptacle port; a lens array including lenses positioned on the receptacle window; and at least one receptacle alignment feature.

Abstract: An optical connector assembly may include a first housing having a first opening therein, a second housing having a second opening therein, a first optical window carried by the first housing within the first opening, a second optical window carried by the second housing within the second opening, at least one Vertical Cavity Surface Emitting Laser (VCSEL) carried within the first housing behind the first optical window, and at least one photodetector carried within the second housing behind the second optical window. A first magnetic member may be carried by the first housing, and a second magnetic member may be carried by the second housing and configured to cooperate with the first magnetic member to bias the first and second housings together so that the at least one VCSEL and the at least one photodetector are in optical alignment.

Abstract: An optical connector assembly, includes: a printed circuit board including a supporting surface and a notch; a fixing portion embedded into the notch and comprising a first surface, a second surface, a lead frame and an electrical pin arranged from the fixing portion to the supporting surface to be flush with the supporting surface, a positioning slot disposed on the first surface; a joint portion comprising a first side, plural openings penetrating the first side, the joint portion extending from an edge of the first side to cover the top of the fixing portion, a positioning pin disposed on the first side; plural chips disposed on the fixing portion; plural fibers inserted through the openings. Wherein the positioning pin is engaged into the positioning slot, such that the fibers are coaxially aligned with the chips for light transmission.

Abstract: It is an object of the present invention to have a method for aligning the optical axis of an optical fiber with the optical axis of an opto-electronic component and for fastening the optical fiber into the resulting relative position in relation to the opto-electronic component. This method includes the following steps: a slot is cut into a base, an optical fiber is disposed within the slot so that it touches neither the sides nor the bottom, a solidifiable product is deposited onto the optical fiber, a limited polymerization area of the solidifiable product is defined near the opto-electronic component, one part of the solidifiable product is partially solidified so as to allow the optical fiber a limited range of movement, the optical fiber is moved so as to align its optical axis with the optical axis of the opto-electronic component, the solidifiable product is completely solidified so as to fasten the optical fiber within the slot.

Abstract: Disclosed are optical connectors having lenses along with methods for making the same. In one embodiment, the optical connector includes a fiber body having a front portion with a plurality of fiber guides, and a connector body having a plurality of connector body fiber guides that lead to a plurality of lenses at a front portion of the connector body. The fiber body attaches to the connector body and may align a plurality of optical fibers to the lenses at the front portion of the connector body. One embodiment has the fiber body configured as a crimp body with a barrel at a rear portion for attaching a fiber optic cable.

Abstract: Laser emission systems for surgical and other therapeutic uses are herein disclosed. In the preferred embodiments, different laser control systems are disclosed each capable of multiple, simultaneous emission of lasers of different wavelengths in a single beam. The embodiments feature a handheld wireless laser module or a portable console with a laser tip extending therefrom. The laser module is controlled by wireless footswitch. Fiber extension modules may be used with the later embodiment.

Abstract: Laser emission systems for surgical and other therapeutic uses are herein disclosed. In the preferred embodiments, different laser control systems are disclosed each capable of multiple, simultaneous emission of lasers of different wavelengths in a single beam. The embodiments feature a handheld wireless laser module or a portable console with a laser tip extending therefrom. The laser module is controlled by wireless footswitch. Fiber extension modules may be used with the later embodiment.

Abstract: Provided are an opto-electric hybrid board and a manufacturing method therefor. The opto-electric hybrid board includes an optical waveguide unit and an electric circuit unit having an optical element mounted thereon, the electric circuit unit being coupled to the optical waveguide unit using coupling pins. The optical waveguide unit includes fitting holes for fitting the coupling pins thereinto, which are formed in a surface of an overcladding layer, located and formed at predetermined locations with respect to one end surface of a core. The electric circuit unit includes fitting through holes for fitting the coupling pins therethrough, located and formed at predetermined locations with respect to the optical element. The optical waveguide unit and the electric circuit unit are coupled to each other in a state in which the coupling pins fit through the fitting through holes and fit into the fitting holes.

Abstract: An optical module providing higher reliability during high-speed light modulation and a lower bit error rate when built into a transmitter (transceiver). An optical module contains a taper mirror for surface emission of output light, an optical modulator device, and an optical modulation drive circuit, and the optical modulator device and the optical modulation drive circuit are mounted at positions so as to enclose the taper mirror.

Abstract: An optical-electrical connector assembly comprises a housing, a printed circuit board received in the housing and including a number of converting elements, a lens member, a ferrule aligned with the lens member and having a resisting portion, an integrated securing member, a coiled spring received in the securing member, and an optical cable having a number of optical fibers. The ferrule has a first engaging portion and a second engaging portion engaged with the housing. The coiled spring is compressed between the resisting portion and the first engaging portion.

Abstract: Provided is a compact optical communication module which is configured and structured so as to be suitable for high-speed transmission and which facilitates the fixing and positioning of optical elements and prevents misalignment of the optical axis during temperature change. An optical communication module is constituted so as to have a transceiver circuit as the circuit substrate, a submount unit, a fiber stub as an optical connector member, and an optical fiber coupling member. The optical communication module is configured as a modular component in which the optical axis of an optical element mounted on the submount unit is roughly parallel to the mounting surface of the transceiver circuit.

Abstract: A method to assemble a pig-tailed optical module and an arrangement thereof are disclosed. The method includes a step to recover the optical coupling efficiency between the optical device in the optical module and the pig-tailed fiber. The method includes a step to iterating the YAG laser welding at points axially distributed but with an inconstant pitch as slightly rotating the optical module around the optical axis of the pig-tailed fiber clock wise and counter clock wise depending on the enhancement and/or the degradation of the optical coupling efficiency between the optical device and the pig-tailed fiber.

Abstract: An optical module includes a substrate, an optical device of a surface-emitting element or a surface-receiving element mounted on a surface of the substrate with a light-emitting portion or a light-receiving portion located to face the surface of the substrate, an optical fiber disposed parallel to the surface of the substrate and in a longitudinal direction of the substrate, a mirror provided to face the light-emitting portion or the light-receiving portion of the optical device and a tip of the optical fiber, and optically connect the optical device and the optical fiber, and an optical fiber receiving groove provided in the surface of the substrate to receive the optical fiber. A width of the mirror is greater than a width of the optical fiber receiving groove. Reflecting portions are provided on edges, respectively, of a mirror side end of the optical fiber receiving groove, and the reflecting portions reflect incident light from the mirror facing the edges, again back to the facing mirror.

Abstract: A process for preparing a subassembly, the process comprising: (a) defining the location of one or more grooves for receiving optical conduits on the top planar surface of a wafer or panel, the grooves corresponding to multiple interposers on the wafer or panel; and (b) etching the grooves into the wafer or panel, each groove having sidewalls and first and second terminal ends and a first facet at each terminal end perpendicular to the side walls, each first facet having a first angle relative to the top planar surface, each groove being shared by a pair of transmitting and receiving interposers on the wafer or panel prior to being diced such that the first and second terminal ends of each groove correspond to transmitting and receiving interposers, respectively.

Abstract: In one exemplary embodiment, an optical coupler of a fiber optic system can include a light-source input cavity packaged in an outer casing. The cavity can receive an optical signal from a light source. An optical collimator packaged in the outer casing such that a receiving end of the optical collimator can receive the light source from the light-source input cavity. The optical collimator can include at least one beam forming stage. The optical collimator can generate a collimated beam output from the optical signal. An optical cavity can receive the collimated beam output of the optical collimator. The optical cavity can be coaxially included in a receiving optical fiber coupled with the outer casing coupled with optical cavity. The optical cavity can receive the collimated beam output of the optical collimator and input the collimated beam into the receiving optical fiber.

Abstract: An optical connecting structure has an optical fiber, a pressing member having a circular outer cross section, and an optical member, wherein the optical member has an optical element, an optical fiber stopper structure, and an optical fiber holding groove, wherein the optical fiber stopper structure is positioned between the optical element and the optical fiber holding groove, wherein the optical fiber is inserted along the optical fiber holding groove so as to contact with the optical fiber stopper structure, and wherein the pressing member is arranged on the optical fiber holding groove mutually perpendicular, the pressing member presses the upper surface of the optical fiber to a direction of a bottom of the optical fiber holding groove, and the optical fiber and the optical element are thereby optically connected.

Abstract: The present invention provides a semiconductor laser module in which a coupling efficiency does not easily vary even though a displacement amount varies by the effect of welding. The semiconductor laser module comprises: a semiconductor laser element 2 for emitting a laser light whose cross-sectional shape at an emission end face is elliptical; an optical fiber 3 arranged to receive the laser light from the semiconductor laser element 2; a package 4 for housing the semiconductor laser element 2 and the optical fiber 3; a first fastening means 117 for fastening the optical fiber 3 to the package 4; and a second fastening means 7 for fastening the semiconductor laser element 2 to the package 4, wherein the semiconductor laser element 2 and the optical fiber 3 are fastened such that a minor axis of the elliptical shape of the laser light becomes parallel to a line connecting both ends of the optical fiber 3, said both ends being restricted by the first fastening means 117.

Abstract: An optical fiber connector includes optical fibers, a connector body, two first glue layers, and two second glue layers. The optical fibers are received in grooves and aligned with optical lenses formed on the connector body. The first and second glue layers fill in the recesses to hold the main portion and the front portion of the optical fibers securely in place.

Abstract: A combined optical and electrical flexible wiring includes a first film substrate, a plurality of conductors aligned parallel on a surface of the first film substrate, an optical fiber provided on the surface of the first film substrate and aligned parallel to the plural conductors, a second film substrate with which the plural conductors and the optical fiber are covered in such a manner as to include an exposed portion, a resin mount provided over the exposed portion in such a manner as to cover the plural conductors and the optical fiber, the resin mount being formed with a light inlet or outlet groove including a mirror surface therein, an optical-electrical conversion component formed on a surface of the resin mount, and a wiring pattern formed on the surface of the resin mount.

Abstract: A photoelectric conversion module includes: a plurality of optical connectors each connectable to an optical communication path; an electrical connector connectable to an electrical communication path; a circuit board equipped with a light receiving and emitting element, the light receiving and emitting element converting an optical signal received by the optical connector into an electrical signal to be transmitted to the electrical connector and converting an electrical signal received by the electrical connector into an optical signal to be transmitted to the optical connector; and a waveguide optically connecting the optical connector and the electrical connector.

Abstract: An optical subassembly is disclosed, in which an optical device is assembled with an optical receptacle using an anchor effect for the ultraviolet curable resin. The optical receptacle includes a sleeve portion that receives an external optical fiber and a sheath portion that receives the optical device. A bore formed in the sheath portion circumferentially provides a plurality of ribs; while the pillar portion of the optical device that encloses a semiconductor optical device provides a plurality of hollows in positions corresponding to the ribs. The rib shows the anchor effect for the resin filled within the hollow.

Abstract: An optoelectronic interconnection system is for use in optical communications. The optoelectronic interconnection system may include a substrate having a main portion and a foldable portion formed on a substrate of a board for positioning an optically active device connected to the foldable portion. The foldable portion is adapted to be folded with respect to the main portion into a desired optical coupling orientation for which an optical operative axis (OA) of the optically active device arranged therein is substantially aligned with an optical transmission axis (TT?) that is other than perpendicular to the main portion. A holding fixture holds the foldable portion in the desired optical coupling orientation.

Abstract: Laser emission systems for surgical and other therapeutic uses are herein disclosed. In the preferred embodiments, different laser control systems are disclosed each capable of multiple, simultaneous emission of lasers of different wavelengths in a single beam. The embodiments feature a handheld wireless laser module or a portable console with a laser tip extending therefrom. The laser module is controlled by wireless footswitch. Fiber extension modules may be used with the later embodiment.

Abstract: A fiber optic cable assembly includes a fiber optic connector and a fiber optic cable having at least one strength element, the connector and cable held together by a crimp band. The crimp band may include at least one lateral aperture on at least one end for inspecting the disposition of the strength element prior to crimping to ensure a uniform distribution of the strength element.

Abstract: An optical fiber communication device is applicable to positioning an optical fiber cable having a first optical fiber connector. The optical fiber communication device includes a main body and a positioning slot. The main body has a case and a second optical fiber connector for the first optical fiber connector to be inserted therein. The positioning slot is disposed continuously around the periphery of the case of the main body in an outwardly open manner, thereby providing a space for the optical fiber cable to be received therein, and positioning the optical fiber cable. The optical fiber communication device winds up the optical fiber cable around the main body through the positioning slot, without assembling/disassembling a coiling drum, thereby efficiently simplifying the process of positioning the optical fiber cable in the optical fiber communication device.

Abstract: An optical connector comprises a sleeve with a flange provided at one end face of a hollow cylinder, a collimator lens, which is press-fitted into or fitted by insertion into the sleeve to be thereafter adhered and fixed to the sleeve, and an optical fiber, which is fusion-bonded at the end face of the collimator lens on the opposite side to the flange side in such a state that the collimator lens is fixed into the sleeve, wherein the end face of the flange is machined to a plane perpendicular to an optical axis, and the collimator lens has a focal position at the end face on the opposite side to the flange side.

Abstract: A fiber optic connector release mechanism for releasing a transceiver module in a cage permanently mounted on a PCB is disclosed. The release mechanism includes a bail rotating a U-shaped flange through a two stage travel path to urge the bail forward in a slide path on the transceiver module. The release mechanism includes a boss disposed on one of the bail and the arm assembly and a dimple disposed on another of the bail and the arm assembly to secure the bail in a locked position. As the bail moves forward from the locked position, wedge elements at the end of arms extending rearward may contact locking tabs on the cage, forcing the locking tabs outward. As the locking tabs are forced outward, the shoulders of the transceiver module are released, and the transceiver module is free to slide out of the cage.

Abstract: A method for providing an improved interconnection between an optical fiber and an optical package is described. The method includes inserting an end of the fiber through a feed through tube and into a main body of the optical package, a portion of the fiber proximate the end being metalized, attaching the metalized portion of the fiber within the main body of the optical package, a portion of the metalized fiber remaining within the feed through tube, inserting a stopping device into the feed through tube, melting solder within the feed through tube, in an area between the stopping device and the main body of the optical device, the area containing metalized fiber, compressing the melted solder using the stopping device, removing the stopping device from the feed through tube after the solder has solidified, and attaching a jacket associated with the optical fiber within the feed through tube.

Abstract: A fiber optic connector release mechanism is disclosed. The mechanism may be used to release a transceiver module housed in a cage that is permanently mounted on a printed circuit board. The release mechanism may include a cam mounted bail that rotates a U-shaped flange through a two stage travel path to urge the bail forward in a slide path on the transceiver module. As the bail begins to move forward, wedge elements at the end of a pair of slide arms extending rearward from the bail may contact locking tabs on the cage, forcing the locking tabs outward. As the locking tabs are forced outward, the shoulders of the transceiver module are released, and the transceiver module is free to slide out of the cage as the operator pulls on the bail.

Abstract: A manufacturing method of an optical communication module for manufacturing the optical communication module, including the sequentially performed steps of: (1) mounting a light-emitting element and a light-receiving element on a side surface of a sub-mount substrate and mounting the sub-mount substrate on a printed circuit board such that the light-emitting and -receiving directions of the light-emitting element and light-receiving element are parallel to the printed circuit board; (2) aligning an optical waveguide; and (3) dropping resin solution on an area of the sub-mount substrate including an optical waveguide end and the light-emitting element or the light-receiving element, and curing the resin solution. According to the present invention, it is possible to provide an optical communication module which can be made thin, small and cheap.

Abstract: In an optical module including a module main body 10, an optical device housed in the module main body 10, and an optical fiber 21 having an end placed in the module main body 10 and optically coupled to the optical device, the end of the optical fiber 21 is held between a semi-cylindrical part 31d of a shield cover 31 that covers the module main body 10 and a semi-cylindrical part 32c of a presser plate 32.

Abstract: Provided are a terahertz wave transmission and reception (Tx/Rx) module package and method of manufacturing the same. The complete and separate terahertz wave Tx/Rx module package is implemented by simply aligning a silicon ball lens, a photoconductive antenna and a focusing lens, and thus facilitates generation or measurement of a terahertz wave. The terahertz wave Tx/Rx module package and method can remarkably reduce time and cost required to build a terahertz wave generation and measurement system, and simplify and miniaturize the terahertz wave generation and measurement system. In addition, characteristics of a terahertz wave generated by the photoconductive antenna can be simply measured. Furthermore, the terahertz wave Tx/Rx module package can be stored and transported with a photoconductive antenna, a silicon ball lens and a focusing lens kept aligned as they are, and also it is possible to minimize pollution of terahertz wave devices caused by surroundings.

Abstract: A method of assembling an optical fiber connector includes the steps of providing a ferrule with an internal through passage, and using a gas for treating a surface of the internal through passage to enhance a bonding capability of the surface. Adhesive is introduced into at least a portion of the internal through passage and at least one optical fiber is secured to the surface of the internal through passage by the adhesive. Another method includes the steps of providing the ferrule with an internal through passage including a shoulder, a window that extends through a side surface, and a cap having at least a portion inserted into the window. Adhesive is introduced into at least a portion of the internal through passage and is in engagement with the shoulder for providing an axial stop for securing at least one optical fiber with respect to the internal through passage.