Abstract: A method of directly molding a fiber optic ferrule on an end of a fiber optic cable is disclosed. The method preferably includes stripping a cable jacket and/or a buffer layer from optical fibers of the fiber optic cable and trimming the optical fibers with a laser thereby creating trimmed ends on the optical fibers. The optical fibers and preferably a pin assembly are held near the end of the fiber optic cable by an optical fiber and pin locator. The optical fiber and pin locator can statically or dynamically hold and position the optical fibers and pin assembly. After the optical fibers and/or the pin assembly are positioned, a fixture is attached to the trimmed ends of the optical fibers and/or the pin assembly thereby preserving their relative position to each other. After the fixture is attached, the optical fiber and pin locator is removed, and the end of the fiber optic cable with the attached fixture is placed into a mold cavity.

Abstract: A dust cap assembly includes a sleeve and a sealant that seals an end face portion of a fiber optic ferrule from contaminants and, upon removal, provides remedial cleaning of any foreign matter present on the ferrule when the dust cap assembly was initially installed along with methods of making the same. The sleeve of the dust cap assembly has a through bore and a distal end for receiving the sealant. Further, the sealant may optionally have advantageous mechanical and optical properties such that the dust cap assembly may function as a terminator for testing.

Abstract: An optical coupling structure that interfaces between optical devices mounted on a substrate and optical waveguides formed in the substrate. A manufacturing method includes preparing a wafer formed on an inorganic solid material on a dicing tape and cutting the back surface of the wafer to form substantially angled portions using a dicing blade having a point angle. The dicing tape is stripped from the wafer and the wafer is separated at the valleys between the substantially angled portions to obtain an optical coupling element. The obtained optical coupling element is a three-dimensional polyhedral light-reflecting member having a mirror surface corresponding to a surface of the wafer. The obtained optical coupling element is inserted into a trench that opens, substantially perpendicular to an optical waveguide of an optical transmission substrate, in the main surface of the optical transmission substrate to provide a structure for optical coupling with the outside.

Abstract: A magnetometer includes a tapered microfiber having a curved portion, an excitation laser in optical communication with the tapered microfiber, and a nanocrystal attached to the curved portion of the tapered microfiber. Laser light emitted from the excitation laser interacts with the nanocrystal to create an emitted photon flux which is monitored to detect a magnetic field passing through the nanocrystal.

Abstract: The present invention provides an optical apparatus having a multimode interference coupler configured to optically couple a strip waveguide to a slot photonic crystal waveguide. The multimode interference coupler has a coupling efficiency to the slot photonic crystal waveguide greater than or equal to 90%, a width that is approximately equal to a defect width of the slot photonic crystal waveguide, a length that is equal to or less than 1.5 ?m, and interfaces with the slot photonic crystal waveguide at an edge of a period that gives a termination parameter of approximately zero. The optical apparatus may also include an insulation gap disposed between the multimode interference coupler and the slot photonic crystal waveguide, wherein the length of the multimode interference coupler is reduced by approximately one half of a width of the insulation gap.

Abstract: An integrated optical interconnect. The integrated optical interconnect includes a receptacle for connecting to a first external component. The receptacle includes an EMI shield with an aperture sized to allow transmission of an optical signal through the aperture while containing EMI within the receptacle. The integrated optical interconnect also includes a port injection molded around or within a portion of the receptacle, the port being configured to receive a second external component and a lens injection molded near a location of the aperture of the EMI shield.

Abstract: A communications cable is made by providing at least one conducting element, and co-extruding first and second polymeric materials around the at least one conducting element to form a dielectric jacket encasing the at least one conducting element. The at least one conducting element may include at least one electrical conductor, and/or at least one optical fiber. The dielectric jacket has a substantially constant cross-sectional configuration along a length of the cable and comprises an inner layer formed from the first polymeric material and an outer layer formed from the second polymeric material. The outer layer has an outer surface with a coefficient of friction within the range of about 0.05-0.40, and a thickness of between about five and ten thousandths of an inch (0.005?-0.010?).

Abstract: A flow of a resin which is injected for insert-molding a wiring plate into an end face of an optical fiber positioning component is regulated by regulating portions disposed in side portions of a die. Therefore, leads of the wiring plate can be prevented from being fixed while remaining to be positionally displaced by the force of the flowing resin. As a result, three-dimensional electrical wirings can be formed easily and correctly.

Abstract: In one or more embodiments, an optical fiber coupler for coupling pump radiation into a rectangular optical fiber includes a fiber section and a pump fiber. The fiber section includes a core having a high aspect ratio cross-section and an interface section. The core is positioned in contact with first and second signal claddings to form reflective boundaries at fast-axis boundaries of the core. The pump fiber is side coupled to the fiber section via the interface section, and configured to couple the pump radiation into the fiber section.

Abstract: An optical adapter that is arranged to connect two or more optical devices that have different connector layouts, the optical adapter comprising a material through which a plurality of waveguides is formed, the waveguides defining a first connector configuration at one end or face of the material and a second connector configuration at another, or same end or face of the material.

Abstract: A connector (100) for a plurality of optic fibers (106-107) includes a polymer layer deposited over the ends of the fibers at the face of the connector (100) to reduce insertion loss. The polymer layer (110) may be a single layer which encompasses all of the ends of the plurality of fibers (106-107), or separate layers deposited at each of the ends of the plurality of fibers. These layers may be configured to be generally square, rectangular, circular or elliptical. Additional layers of the polymer may be deposited on the face between alignment hole and the housing.

Abstract: An optical module with a ferrule assembly able to be easily produced is disclosed. The ferrule with a tubular shape provides first to third bores. The first bore receives the optical fiber with a sheath, the second bore receives only the glass core of the fiber, which is obtained by removing the sheath, and the third bore has a diameter substantially equal to the outer diameter of the glass core of the fiber. A resin is filled in the gap between the sheath and the third bore, and in the gap between the glass core of the fiber and the second bore. The tip of the glass core is tilted with the axis and protrudes from the end surface of the ferrule.

Abstract: A photoelectric coupling assembly and manufacturing method thereof enabling a three dimensional electrical wiring pattern is provided. The assembly includes a photoelectric conversion unit equipped with a photoelectric conversion element and a molded article. The molded article has a hole configured and arranged to have an optical fiber inserted there-through such that a distal end of the fiber faces an active layer of the conversion element, a front surface on which the conversion unit is mounted, and a side surface being contiguous to the front surface. The lead being insert molded into the molded article has a first surface being exposed at the front surface and electrically connected to the conversion element, a second surface being exposed at the side surface, and an engaging portion having a width increasing in a direction away from the front surface. At least a portion of the engaging portion is contained inside the resin forming the molded article.

Abstract: An illumination fiber optic ribbon includes optically-transmissive fibers which are adjacent to each other. At least two of the optically-transmissive fibers are twisted together to form a twisted segment. Where the two optically-transmissive fibers are not twisted forms a non-twisted segment. The twisted segments and non-twisted segments alternate along the length of the ribbon. Bends are disposed along the twisted segment and are formed by twisting adjacent optically-transmissive fibers. A light source is connected to one or both ends of the optically-transmissive fibers. The light source emits a light flux into the ribbon so that light emits from the bends in the twisted segment.

Abstract: A fiber array unit (FAU) having plurality of optical transmission channels (e.g., fiber optics) terminating at a side surface thereof for carrying optical signals to and/or from waveguides in a planar lightwave circuit (PLC). The optical transmission channels of the FAU terminate at the side surface thereof in a non-linear, cross-sectional pattern (e.g., a curved pattern). The non-linear pattern is determined by a pattern of grooves formed in a substrate of the FAU, in combination with a lid which may also have an inverse, non-linear pattern, to thereby rigidly, reliably and permanently hold the optical transmission channels in place.

Abstract: An integrally molding die for manufacturing a package includes a supporting portion for supporting at least one end including an incident/exit port of a light signal in a light transmission path, and a lead frame for mounting an optical element. The integrally molding die includes a recess for forming the supporting portion, a first projection, which comes into contact with an optical element mounting surface of the lead frame, and a second projection, which comes into contact with a back surface of the optical element mounting surface.

Abstract: A fluid for dispensation on a substrate. In one implementation, the fluid comprises a set of fluid parameters to facilitate dispensation of the fluid from the system. In another implementation, the fluid comprises a set of fluid parameters specific to a polymerizable material.

Abstract: A device and a method for forming a ceramic ferrule blank are provided. A shaped wire (2) is disposed in a mold cavity (1) for form a blank, a knock pin mold (4) is disposed in a lower opening of the mold cavity (1), an axle hole (5) for the shaped wire (2) to pass through is opened in the knock pin mold (4), two punching half dies (6) and corresponding half die press heads (7) are disposed over the mold cavity (1), a wire groove (8) for receiving the shaped wire (2) is opened on a side of the half die press head (7), one end of the shaped wire (2) is fixed over the knock pin mold (4), and the other end is clipped by a wire clip unit (9).

Abstract: A fiber loop formed by bending of a connection section between the first fiber and the second fiber includes a coupling region and an upper taper region as well as a down taper region arranged symmetrically on two sides of the coupling region. Then the fiber optic splitter with the fiber loop is assembled with a splitting ratio modulation mechanism. Thus the manufacturing of the fiber optic power splitter with variable splitting ratio is simplified and this favors production and applications of the device. Moreover, the splitting and modulation quality of the splitter are stable and are controlled precisely. Thus the economic benefits of the device in manufacturing, operation quality and product competitiveness are all improved.

Abstract: A fiber optic adapter is disclosed. The fiber optic adapter includes a main body configured to receive a first fiber optic connector through a first end and a second fiber optic connector through a second end for mating with the first fiber optic connector. The adapter includes a ferrule alignment structure located within an axial cavity of the main body, the ferrule alignment structure including a sleeve mount and a ferrule sleeve, the sleeve mount including an axial bore and at least one latching hook extending from a center portion of the sleeve mount toward the first end of the main body and at least one latching hook extending from the center portion toward the second end of the main body, the latching hooks configured to flex for releasably latching the first and second fiber optic connectors to the fiber optic adapter.

Abstract: An optical coupling device for coupling a light beam into a waveguide and a method of manufacturing the device. The device includes a grating portion having a plurality of essentially straight and essentially parallel scattering elements, wherein two or more of the scattering elements have different lengths. The method includes providing a grating layer on a substrate and forming a plurality of essentially straight and essentially parallel scattering elements from the grating layer, wherein two or more of the scattering elements have different lengths.

Abstract: The present invention discloses an improved optical device having at least a first and second optical components. The optical device further includes a first extending tube securely attached to the first and second optical components as a first building block wherein the first and second optical components are aligned and position adjusted in the position-holding-and-fixing means and securely attached thereto by a room-temperature UV curable epoxy UV cured at room temperature. The optical device then further assembled using a step-by-step building block assembling process with more building blocks assembled by optical components similar to the first building block described above. In other preferred embodiment, the first and second optical components held in the extending tube having a pre-aligned dihedral angle between the first and second optical components.

Abstract: The present invention relates to apparatus and devices (11) for placing light with samples for analysis and method of making and using such apparatus and device.

Abstract: An optoelectronics chip-to-chip interconnects system is provided, including at least one packaged chip to be connected on the printed-circuit-board with at least one other packaged chip, optical-electrical (O-E) conversion mean, waveguide-board, and (PCB). Single to multiple chips interconnects can be interconnected provided using the technique disclosed in this invention. The packaged chip includes semiconductor die and its package based on the ball-grid array or chip-scale-package. The O-E board includes the optoelectronics components and multiple electrical contacts on both sides of the O-E substrate. The waveguide board includes the electrical conductor transferring the signal from O-E board to PCB and the flex optical waveguide easily stackable onto the PCB to guide optical signal from one chip-to-other chip. Alternatively, the electrode can be directly connected to the PCB instead of including in the waveguide board. The chip-to-chip interconnections system is pin-free and compatible with the PCB.

Abstract: A method for producing an optical element having a three-dimensional structural part that can resolve problems associated with deterioration of optical characteristics that is caused by variations in the element shape in the conventional process and poor endurance caused by insufficient joining strength and the optical element produced by the method are provided. A method for producing an optical element configured by joining at least a first optical member and a second optical member formed from an oxide material includes the processes of forming a refractive index periodic structural part with a period equal to or less than a visible light wavelength on at least one of the first optical member and the second optical member, forming a joining layer composed of an oxygen-deficient oxide on the first optical member and the second optical member, tightly joining the first optical member and the second optical member by the joining layer, and oxidizing the joining layer after the tight joining.

Abstract: A method of producing an optical waveguide connector in which the productivity of a ferrule member can be improved, and the connection loss with a counter connector can be suppressed to a low level is obtained. An optical waveguide connector 11 is obtained by performing: an aligning step of restricting the position of the tip end of an optical waveguide 2 passed through an insertion hole 13b of a ferrule member 13, by a positioning portion of a positioning member 16 which is opposedly placed at the tip end of the ferrule member 13, thereby aligning the optical waveguide 2 to the ferrule member 13; and a bonding step of filing a gap between the optical waveguide 2 which is passed through the insertion hole 13b, and the insertion hole 13b, with an adhesive agent to fix the optical waveguide 2 to the ferrule member 13.

Abstract: This document discusses, among other things, a connector for an optical imaging probe that includes one or more optical fibers communicating light along the catheter. The device may use multiple sections for simpler manufacturing and ease of assembly during a medical procedure. Light energy to and from a distal minimally-invasive portion of the probe is coupled by the connector to external diagnostic or analytical instrumentation through an external instrumentation lead. Certain examples provide a self-aligning two-section optical catheter with beveled ends, which is formed by separating an optical cable assembly. Techniques for improving light coupling include using a lens between instrumentation lead and probe portions. Techniques for improving the mechanical alignment of a multi-optical fiber catheter include using a stop or a guide.

Abstract: The invention provides a process of manufacturing an optical waveguide for optically connecting a plurality of optical devices, comprising the steps of: disposing a resin composition between two or more optical devices, the resin composition comprising a resin and a 1,4-dihydropyridine derivative, forming an optical path through the resin composition between the optical devices by light having a wavelength capable of inducing a structural change in the 1,4-dihydropyridine derivative, and removing the 1,4-dihydropyridine derivative from the resulting resin composition. Also disclosed is a connection structure obtained by the process.

Abstract: The optical branching-coupling device having a self-written optical waveguide core is formed without using half mirrors. In the optical branching-coupling device, three POFs are inserted into a housing having an approximately D-shaped sidewall. An approximately semi-columnar region V in the housing was filled with an uncured liquid light-curing acrylic resin. A laser beam was introduced from one of the POFs, and a cured material was formed of the end face of the POF. The diameter was equal to the core diameter of the POF. The cured material grew, resulting in the cured material reaching the end face of another one of the POFs, thereby forming an optical waveguide core. Next, a laser beam was introduced from the end face of the last one of the POFs. The cured material grew, resulting in a connection with the optical waveguide core, thereby forming the optical waveguide core.

Abstract: To provide an optical fiber cord with an optical connector of higher flexibility resistance, and the method for manufacturing the same are disclosed. An optical fiber cord with an optical connector, wherein said fiber cord, wherein said the optical connector comprising a stop ring having a through hole formed therein, though which said optical fiber is disposed; a crimping ring being disposed around said optical fiber to crimp said stop ring and said optical fiber cord; a ferrule being disposed at the tip end part of said optical fiber in said optical fiber cord; a spring being disposed around said optical fiber and between said ferrule and said stop ring; a plug frame being engaged with said stop ring; a grip being engaged with said plug frame; wherein said through hole of said stop ring having a stepwisely narrowing part in which a hole diameter is gradually reduced from said crimping part side to said ferrule side.

Abstract: An optical coupler is formed of a low index material and exhibits a mode field diameter suitable to provide efficient coupling between a free space optical signal (of large mode field diameter) and a single mode high index waveguide formed on an optical substrate. One embodiment comprises an antiresonant reflecting optical waveguide (ARROW) structure in conjunction with an embedded (high index) nanotaper coupling waveguide. Another embodiment utilizes a low index waveguide structure disposed in an overlapped arrangement with a high index nanotaper coupling waveguide. The low index waveguide itself includes a tapered region that overlies the nanotaper coupling waveguide to facilitate the transfer of the optical energy from the low index waveguide into an associated single mode high index waveguide. Methods of forming these devices using CMOS processes are also disclosed.

Abstract: A fiber optic cable assembly including a mid-span access location, a cable having at least fiber therein, and a tether in optical communication with the at least one fiber of the cable. The access location and portions of the cables are substantially encapsulated within a flexible body having dimensions sufficient to accommodate the optical splitter therein. A method for making a fiber optic cable assembly including an access location, distribution cable, tether and optical splitter maintained within a flexible overmolded body while providing an assembly having a relatively small cross-sectional diameter.

Abstract: [Object] A self-written branched optical waveguide is formed. [Solving Means] A laser beam 2 from a laser source (not shown) is focused with a lens 3 onto the face of incidence 10 of an optical fiber 1. The laser beam of an LP11 mode was emitted from the face of emergence 11, and “bimodal” light intensity peaks were arranged in the horizontal direction (1.A). A slide glass 4 coated with a photocurable resin gel 5 was placed horizontally (1.B). A single linear cured material 61 was formed as the LP11-mode laser beam was emitted from the face of emergence 11 of the optical fiber 1 (1.C). A branch portion 62 was then formed at a distance L from the face of emergence 11 of the optical fiber 1, which was followed by the growth of two cylindrical cured materials 63a and 63b. The two cylindrical cured materials 63a and 63b were linear branches, and formed an angle of about four degrees. An optical waveguide 60 thus formed was composed of cured materials 61, 62, 63a, and 63b (1.D).

Abstract: A photoelectric coupling assembly and manufacturing method thereof enabling a three dimensional electrical wiring pattern is provided. The assembly includes a photoelectric conversion unit equipped with a photoelectric conversion element and a molded article. The molded article has a hole configured and arranged to have an optical fiber inserted there-through such that a distal end of the fiber faces an active layer of the conversion element, a front surface on which the conversion unit is mounted, and a side surface being contiguous to the front surface. The lead being insert molded into the molded article has a first surface being exposed at the front surface and electrically connected to the conversion element, a second surface being exposed at the side surface, and an engaging portion having a width increasing in a direction away from the front surface. At least a portion of the engaging portion is contained inside the resin forming the molded article.

Abstract: An optical mode converter has a coupling waveguide and a receiving waveguide. The coupling waveguide has at an input end a first effective refractive index and includes a tapered core of a substantially constant refractive index with a substantially square cross section at the input end, which has a size that tapers down moving away from the input end. The coupling waveguide also has a cladding at least partially surrounding the tapered core. The receiving waveguide has a second effective refractive index at an output end and includes a core of a substantially constant refractive index greater than the refractive index of the tapered core of the coupling waveguide and a cladding at least partially surrounding the core. A side surface of the tapered core of the coupling waveguide is optically in contact, in a coupling portion, with the receiving waveguide so as to allow optical coupling between the coupling waveguide and the receiving waveguide.

Abstract: Package substrates for optical die structures are generally described. In one example, an apparatus includes a package substrate having one or more plated through hole (PTH) structures, an optical waveguide coupled with the package substrate, the optical waveguide having one or more input/output (I/O) optical signal pathways to route I/O signals to and from the package substrate, and one or more optical fibers coupled with the optical waveguide, the one or more optical fibers being disposed in the PTH structures to route I/O signals to and from a motherboard.

Abstract: A method of manufacturing directional coupler includes forming a first waveguide over a substrate, forming a separate section on respective ends of the first waveguide, and forming a second waveguide stacked over the first waveguide, wherein the first waveguide and the second waveguide are patterned by ink-jet process. The first waveguide and the second waveguide may be formed so as to overlap each other. The method may further include forming a projecting portion on the substrate, wherein the first waveguide being formed on the projection portion.

Abstract: The invention relates to: An optical coupler for coupling light from at least two input fibres into one output fibre. The invention further relates to a method of fabricating and to the use of an optical coupler. The object of the present invention is to provide an optical coupler, which is relatively easy to manufacture.

Abstract: An optical element module includes a lead frame an optical element mounted on the lead frame, a resin housing including an opening part, and a tube body. The resin housing contains a part of the lead frame on which the optical element is mounted. The tube body includes a tube part for receiving an optical fiber terminal, a lens arranged between the optical element and the optical fiber terminal, and a lid part which covers the opening part of the resin housing. The tube part, the lens and the lid part are integrally formed.

Abstract: The invention relates to an optical fiber combiner and a method for the manufacture thereof. The combiner has a tapering support preform with a plurality of capillary bores, a plurality of input fibers including a core and a cladding around the core and being arranged in parallel in the capillary bores of a support preform, and an output fiber coupled to the tapered end of the support preform in optical connection with the input fibers. The cladding thickness to core thickness ratio of at least one of the input fibers is decreased at the region of the support preform. The invention provides an optically high quality fiber combiner.

Abstract: The invention relates to a pump coupler (2) and a manufacturing method. The pump coupler (2) comprises a least one signal fiber (50) for outputting optical energy, multiple pump fibers (31) for inputting optical energy into the signal fiber (50), and a coupling structure (40) for coupling the optical energy of the pump fibers (31) into the signal fiber (50). A signal feed-through fiber (32) goes through the coupling structure (40). In accordance with the invention the coupling structure (40) is a tapering capillary tube (40) having a first wide end (65) and a second narrow end (70), the pump fibers (31) are connected to the wide end of the capillary tube (40), and at least the narrow end (70) of the capillary tube (70) is collapsed around the signal fiber (32).

Abstract: The present invention discloses a method for fabricating polymer wavelength filter with high-resolution periodical structure, which comprises following steps: (a) a positive photo-resister film is coated on a substrate; (b) a grating pattern is holographically exposed on the positive photo-resister film; (c) the photo-resister film is coated with a negative photo-resister film; (d) the sample is exposed by UV light; (e) develops the sample to obtain a negative waveguide on the photo-resister film having gratings pattern on its bottom to be a waveguide mold; (f) coats a diluted PDMS film on the patterned waveguide mold; (g) bakes the PDMS film to be cured, and peels off from the waveguide mold to be a PDMS mold; (h) places a spacer between the PDMS mold and a thin glass slide to form a first tunnel; (i) injects a precure first UV polymer into the first tunnel; (j) cures the first UV polymer under a broadband UV light; (k) separates the first UV polymer when fully cured, a hardened first UV polymer is formed ha

Abstract: An optical fiber mode coupling device, capable of being readily connected to a conventional optical fiber with a high degree of ruggedness, is provided. The inventive mode coupling device only allows transmission of at least one supported fiber mode therethrough, and is preferably configured to maximize the coupling, of at least one desired fiber mode, to the at least one supported fiber mode. Advantageously, the inventive mode coupling device is capable of performing the functions of a mode filter for the signal entering its first end, or serving as a mode conditioner for the signal entering its opposite second end.

Abstract: An integrated optical interconnect. The integrated optical interconnect includes a receptacle for connecting to a first external component. The receptacle includes an EMI shield with an aperture sized to allow transmission of an optical signal through the aperture while containing EMI within the receptacle. The integrated optical interconnect also includes a port injection molded around or within a portion of the receptacle, the port being configured to receive a second external component and a lens injection molded near a location of the aperture of the EMI shield.

Abstract: A fiber optic sensor includes a housing having first and second end plates with a sidewall extending therebetween with the sidewall having an inwardly facing groove. A flexural disk having a central passage therethrough has an outer edge portion mounted in the inwardly facing groove in the housing. The flexural disk has a stepped thickness that is thinner at the outer edge portion than at a region spaced apart from the housing. A first fiber optic coil is mounted on a first side of the flexural disk in the thicker region of the flexural disk, and a second optical fiber is mounted on a second side of the flexural disk opposite the first fiber optic coil. The first and second fiber optic coils are optically coupled together by a fiber optic coupler to form an interferometer that produces an output signal in response to axial acceleration of the flexural disk.

Abstract: A method provided for manufacturing a lensed tip optical fiber. The method includes providing an optically transparent cylindrical fiber; and etching a first end of the optically transparent cylindrical fiber to form a tip. The tip is heated which forms a lens surface at the heated tip.

Abstract: The present invention provides a method of manufacture that minimizes the lateral offset of a plurality of optical fiber holes associated with a multi-fiber ferrule, including: determining an initial offset distance of each of the plurality of optical fiber holes from each of a plurality of corresponding target locations on an initial endface; removing a predetermined amount of material from the multi-fiber ferrule to form a subsequent endface; determining a subsequent offset distance of each of the plurality of optical fiber holes from each of the plurality of corresponding target locations on the subsequent endface; and, using the initial offset distance and the subsequent offset distance, determining an angle of each of the plurality of optical fiber holes relative to the initial endface.

Abstract: An optical fiber interconnect system wherein the adapter employs a push-push interconnect mechanism wherein the adapter employs a spring loaded slider that moves in a single plane in response to a first pushing force to engage the connector with the adapter and a second pushing force to disengage the connector from the adapter so that the connector can be withdrawn from the adapter. The adapter includes an automatic shutter that is opened upon contact by the inserted connector housing with a cam on the lower portion of the shutter, but avoids contact with the ferrule polished end face. Angled latches are provided on the modular contact so as to enable disengagement and removal of the contact from the remainder of the connector assembly from the front thereof.

Abstract: The invention relates to a rain sensor, especially for a motor vehicle, said sensor comprising an optical waveguide (22) which can be arranged in a windscreen. According to the invention, the planar holographic coupling elements for coupling and decoupling radiation (4) are formed from layered photo-polymer parts (3) into which volume holograms are integrated. The photo-polymer parts (3) are arranged between the core (1) of the waveguide and the envelope of the waveguide (2), resulting in a simple production method and an increased flexibility in terms of the arrangement of the waveguide (22) in the windscreen.

Abstract: The present invention provides a method of manufacture that minimizes the lateral offset of a plurality of optical fiber holes associated with a multi-fiber ferrule, including: determining an initial offset distance of each of the plurality of optical fiber holes from each of a plurality of corresponding target locations on an initial endface; removing a predetermined amount of material from the multi-fiber ferrule to form a subsequent endface; determining a subsequent offset distance of each of the plurality of optical fiber holes from each of the plurality of corresponding target locations on the subsequent endface; and, using the initial offset distance and the subsequent offset distance, determining an angle of each of the plurality of optical fiber holes relative to the initial endface.