Abstract: An optical element (1) for reflecting and/or redirecting light rays (L1) entering therein and again emerging therefrom consists of a transparent base body (2) which is so structured and/or formed that, with the formation of reflection surfaces (8) bounding the base body (2), at least a part of the light rays (L1) impinging upon the reflection surfaces (8) upon emergence from the transparent base body (2) are totally reflected, and at least one cover body (9) arranged behind the reflection surfaces (8). The reflection surfaces (8), and the surfaces of the cover body or bodies (9) towards the reflection surfaces, are adapted to one another such that between them there remains a thin gap (10) or only point contacts exist.

Abstract: The present invention provides an optical semiconductor device comprising: a wiring circuit board; at least one optical semiconductor element mounted on the wiring circuit board; resin layer A that encapsulates the at least one optical semiconductor element therewith; and resin layer B interposed between the resin layer A and the wiring circuit board, and having a tensile modulus as measured at 30° C. of 0.001 to 0.4 GPa.

Abstract: A cable protector in a telecommunications central office protects cables from damage from contact with cable racks as the cables are pulled from bay to bay. The cable protector is a cardboard-like fiber material that is folded into a planar portion that is dimensioned to fit over the top of the cable rack, and integral side flaps that are each folded into V-shaped channels and serve to grip the sides of the cable rack and hold the protector in place when the protector is placed over the top of the rack.

Abstract: An optical data link 20 comprises a mounting member 22, an optical element assembly 24, a circuit board 26, and a spacer 32. The PGA substrate 22 has a substrate 22a and a plurality of electrically conductive pins 22b. The circuit board 26 has a pair of surfaces. Electronic components 34a to 34e are mounted on the pair of surfaces. The optical element assembly 24 includes a semiconductor optical element 24f. The semiconductor optical element 24f is connected to an electrically conductive layer on the circuit board 26. The spacer 32 functions so as to distance the circuit board 26 from the PGA substrate 22. Since the circuit board 26 is distanced from the PGA substrate 22, the electronic components 34a to 34e can be mounted on both surfaces of the circuit board 22.

Abstract: There is provided an optical fiber end face cleaner which is easy to carry and make preparations for use, facilitates cleaning operation, and what is more, makes it possible to positively remove or clear away attached materials from end faces of optical fibers without causing any of the removed materials to adhere to the end faces again. The optical fiber end face cleaner includes at least one elastic base formed by an elastic member having a flat surface of a predetermined size, and a predetermined thickness in a direction perpendicular to the surface. An adhesive layer is formed on a surface of the elastic base, for allowing the end faces of the optical fibers to be pressed against the adhesive layer to cause deposits on the end faces to adhere to the adhesive layer for removal.

Abstract: An optical fiber fixing device has a V-grooved block, a clamp mechanism, a stopper mechanism, a sensor, a motor, an operator section and a controller. The V-grooved block has a top surface formed with a V-groove to support an optical fiber thereon. The clamp mechanism has a clamp portion to fix the optical fiber on the V-grooved block. The stopper mechanism retains the clamp mechanism before the clamp portion is brought into contact with the optical fiber. The sensor outputs a detection signal to the controller upon detection of the clamp mechanism being brought into contact with the stopper mechanism. Upon receipt of that signal, the controller drives the motor to lower the stopper mechanism. In sequential operation with downward movement of the stopper mechanism, the clamp portion presses the optical fiber against the V-groove to fix the optical fiber in place between the clamp portion and the V-grooved block.

Abstract: A first waveguide holding member has a first transverse surface region and a first optical waveguide having an end terminating at the first transverse surface region. A second waveguide holding member has a second transverse surface region which confronts the first transverse surface region of the first waveguide holding member and a second optical waveguide having an end terminating at the second transverse surface region. A guide member is operatively coupled to the first and second waveguide holding members and guides the first waveguide holding member in a transverse direction relative to the second waveguide holding member so as to selectively optically couple and decouple the ends of the first and second optical waveguides.

Abstract: A wavelength stabilizing apparatus utilized in an optical communication system for controlling a light wave output from a tunable optical component is disclosed. The wavelength stabilizing apparatus includes a coarse-tuning element, a fine-tuning element, and a servo element. When the wavelength stabilizing apparatus is used, the light wave output from the tunable optical component is directed into the coarse-tuning element and the fine-tuning element, respectively, and then transformed into electric signals to be received by the servo element. Particularly, the electric signals from the coarse-tuning element are served as basis for coarse-tuning and channel recognition of the light wave output from the tunable optical component while the electric signals from the fine-tuning element are served for fine-tuning and servo control of the light wave output from the tunable optical component.

Abstract: An optical component includes an optical device positioned between isolation channels. The isolation channels are configured to at least partially isolate different regions of the optical component from one another. The optical component also includes at least one light absorbing region positioned so as to intercept light traveling in a direction that would take the light between the optical device and an isolation channel.

Abstract: A method of setting an apparent optical length of an optical fiber for a given optical wavelength includes heating the trimmed optical fiber to selectively vary a refractive index thereof in response to comparison of a determined arrival phase angle with a reference value representing a desired arrival phase angle to change the determined arrival phase angle so that a difference between the desired and determined arrival phase angles does not exceed an acceptable tolerance of a phase error.

Abstract: A device for connecting a first optical component to a second optical component, particularly for connecting the lamp housing of a spotlight to a lamp adapter. The device includes a connecting ring which has a first region which rotatably secures the connecting ring to the first optical component, and a second region which is axially distanced from the first region and enables the connecting ring to be connected to the second optical component. The second region includes coupling means, which engage with corresponding coupling means of the second optical component by rotating the connecting ring. The invention enables two optical components to be connected in a fast, simple manner.

Abstract: A compact fiber packaging system for fiber lasers is provided that comprises a series of spools nested inside one another for efficient volume utilization. The spools comprise an inner spool nested inside at least one outer spool to form a module. Generally, the fiber lasers are wrapped around the inner spool, and then around successive outer spools as required to form the module. Furthermore, the modules may be stacked to form a fiber assembly. The compact fiber packaging system further comprises devices and methods for minimizing thermal gradients between fibers and for removing Waste heat from the system. Additionally, the available volume is further utilized by disposing equipment and materials for operation of the fibers inside a hollow center defined by the inner spool, between the nested spools, and adjacent the nested spools.

Abstract: New methods of manufacture are disclosed for producing side-polished fiber-optic apparatuses, for use both singly and in compact arrays. These new methods involve process steps, many of which operate on many apparatus units simultaneously, with little additional manual labor over what is required to produce one unit at a time. High level assemblies of these fiber-optic apparatuses are also disclosed as compact arrays that not only save space but allow for easy interconnection. Examples of apparatuses that can be made with the disclosed integrated side-polished fiber-optic technology include, but aren't limited to, couplers, multiplexers, taps, splitters, joiners, filters, modulators and switches. By interconnecting elements within compact integrated arrays of these apparatuses, complicated photonic circuits can be readily constructed.

Abstract: An optical transmitter and/or a constituent electro-optic transducer driver that performs active matching. The transducer driver performs active matching using a voltage step down through one base-emitter bipolar transistor, followed by a step up approach through the base-emitter of another bipolar transistor, thereby allowing for lower supply voltages. Furthermore, the voltage drop across the source resistor is minimal by using an operation amplifier in a feedback configuration, thereby further encouraging operability with low supply voltages. The electro-optic transducer driver is also beneficial in that it has high AC-coupling efficiency of the modulation current to the electro-optic transducer, may operate at high speeds with reduced jitter.

Abstract: The present invention has for its object to provide an optical device whose size is made small. In order to achieve this, according to the present invention there is provided an optical device in which a clad and a core whose refractive index is relatively higher than that of the clad are formed on a substrate and light can be transmitted through the core, wherein the core is provided with an input light transmitting pattern section, a diffraction pattern section, and a phase difference generating pattern section. Further, at least in the phase difference generating pattern section, a part, where refractive indexes are different respectively in the direction parallel to the substrate and in the direction perpendicular to the substrate, is provided.

Abstract: The invention relates to a method for fabricating an optical plug connector, according to which the optical waveguide is immersed with the exposed optical fiber into a powdery adhesive and is withdrawn from the same, whereby particles of the powdery adhesive remain adhered to the surface of the fiber. The fiber with the adhered particles is then inserted into the bore of the ferrule of the plug connector and is fixed therein. The ferrule is heated to a temperature greater than or equal to the melting temperature of the adhesive and is maintained at this temperature.

Abstract: The choice for the optical coupling device of a holder that has only one support makes it possible to keep this optical component compact. This is advantageously achieved in that according to the invention the support surrounds the extensible element. The carrier of the optical waveguide thus remains in the immediate environment of the support and the point at which the optical coupling device is to be attached to the optical component. The alignment of the end of the optical waveguide is thus not impaired by unavoidable curvatures of the optical component. The configuration according to the invention of the support of an alternative optical coupling device with a movable arm as an additional connection to the hinge-like web at one end of the carrier of the optical waveguide makes it possible to achieve even more precise alignment of the end of the optical waveguide.

Abstract: An optical component composite body is obtained in which there is no damage to the optical component even when it is bonded to a metal holder by solder or low melting point glass. The metal holder of the present invention is provided with a mounting portion protruding from one side of the main body and a grasping portion protruding from the other side of the main body. The mounting portion is provided with a plurality of protrusions formed in a comb tooth configuration. An optical component formed from alumina (Al2O3) is bonded by solder to a bonding surface of a protrusion, another optical component formed from LiNbO3 is bonded by solder to a bonding surface of another protrusion, and a further optical component formed from YVO4 is bonded by solder to a bonding surface of a further protrusion.

Abstract: An optical waveguide fiber having a high threshold for stimulated Brillouin scattering is disclosed which is suitable as a nonlinear fiber. The optical fiber has a core with one or more core segments. The optical effective area at a wavelength of 1550 nm is less that 30 ?m2.

Abstract: An optical coupler for use within a sink assembly comprising a countertop having a countertop bore formed therethrough and a sink basin mounted above the countertop, the basin having a bore co-axial with the countertop bore for receiving the terminal end of a water drain pipe passing up through the countertop to the sink basin. The light coupler includes a light coupler body having a lower portion received through the countertop bore and an upper portion resting on the countertop about the countertop bore. The water drain pipes passes up through a bore formed through the light coupler body, the coupler further having a light-transmissive portion coupling the lower portion with the upper portion. Light from a light source located proximal the lower surface of the light coupler body lower portion is admitted through the lower surface and transmitted up through the light coupler body and out the upper surface to the sink basin.

Abstract: In accordance with the invention, a variable delay line with continuous tuning comprises an optical path providing at least one continuous delay element coupled to a series of switchable binary fixed delays. The series of switchable delays can be configured to select a delay among a plurality of incremental delays, and the continuous delay can set a continuous delay in a range encompassing the delay increment of the binary series. In a preferred embodiment, the variable delay element comprises a tunable all pass filter (APF) with delay tunable from essentially 0 to a time T and the switchable binary fixed delays form a series (0,T), (0, 2T), (0, 4T), . . . , [0, (2n+1)], where n is an integer ?0. The switches are preferably Mach-Zehnder switches. In an alternative embodiment, the continuous delay element comprises a suitable pair of APF arms. The path and all components can be fabricated as an integrated planar waveguide (solid state) device.

Abstract: A contactor assembly useable on a component testing system for electrically contacting a terminal on a device under test (DUT) for parametric testing and eventual sorting as part of component batch processing includes a holder subassembly and a tip subassembly. The holder subassembly includes a housing and spring-biasing components within the housing. The housing has a proximal end portion for mounting on the component testing system and a distal end portion for holding the tip subassembly proximate the terminal of the device under test. The tip subassembly includes a blade-holding structure and at least one blade held by the blade-holding structure, and the contactor assembly includes components (i.e., a quick-release mechanism) for removably mounting the tip subassembly on the distal end portion of the housing with the spring-biasing components spring biasing the blade toward the terminal of the device under test.

Abstract: A method for adaptively fabricating a waveguide comprises: measuring misplacement of a photonic device relative to a substrate; generating computer readable instructions for using a plurality of graphics primitives to form the waveguide; and photocomposing the waveguide on the substrate in accordance with the computer readable instructions. A reticle comprises a plurality of graphics primitives with at least one of the plurality of graphics primitives comprising a tapered end. A waveguide comprises a plurality of waveguide segments with each of the plurality of waveguide segments comprising a tapered end and being adjacent to at least one other of the plurality of waveguide segments.

Abstract: An optical waveguide fiber having a high threshold for stimulated Brillouin scattering. The optical fiber preferably has large optical effective area, and further preferably has a low zero dispersion wavelength.

Abstract: Disclosed are a functional material and a functional device, each of which is capable of changing a wavelength of a transmission electromagnetic wave such as transmission light or a transmission sound wave such as a transmission ultrasonic wave through the device on the basis of a signal supplied from external. Each of the functional material and the functional device includes a periodic structure having a periodicity with a unit cycle on the order of a wavelength of an electromagnetic wave or a sound wave, and means for disturbing the periodicity which is inserted in at least one portion of the periodic structure, wherein a wavelength of the electromagnetic wave or sound wave passing through the periodic structure by controlling the means on a signal supplied from external.

Abstract: A polymer-based waveguide device is for use in an optical amplifier or as a laser waveguide. The waveguide device includes a substrate (1), a polymer bottom cladding layer (21) on the substrate, a polymer channel waveguide (3) on the bottom cladding layer, and a polymer top cladding layer (22). The channel waveguide is doped with at least one kind of rare earth metal ion that can be excited to produce a laser. The bottom and top cladding layers have a same refractive index, which is substantially lower than a refractive index of the channel waveguide. When a light signal is input to the waveguide device, an amplified light signal is obtained and is transmitted within the channel waveguide.

Abstract: Turf comprising artificial or natural turf fibers and fiber optic filaments extending between the turf fibers. The present invention also provides a method of marking a surface comprising the steps of providing a light source, providing a surface to be marked, providing an optical material capable of illumination by the light source, configuring and arranging the optical material, the surface, and the light source such that illumination of the optical material is visible on the surface, and illuminating the optical material. The present invention also provides a method of manufacturing turf comprising the steps of providing a turf surface, providing optical material capable of illumination by a light source, and threading the turf surface with the optical material whereby illumination of the optical material is visible on the surface.

Abstract: A method for performing optical signal and beam distribution in a heterodyne interferometer. A planar lightwave circuit is provided including a plurality of waveguide optical transmission elements and an input coupler and an output coupler arranged along the optical transmission elements. Optical pathlengths of the transmission elements are matched between the input coupler and the output coupler to compensate for thermal effects. Reference and measurement optical phases are determined employing the input coupler and the output coupler.

Abstract: A three-dimensional mounted assembly includes a molded body, a plurality of electronic parts sealed with the molded body, a plurality of interconnections electrically connected to the electronic parts and sealed with the molded body wherein part of at least one of the interconnections is exposed on a first side of the molded body and at least another one of the interconnections is exposed on a second side of the molded body differing from the first side.

Abstract: A method and structure for an optical switch. A channel is housed within a solid material. Contacts coupled to the channel are further coupled to the solid material, while a plurality of piezoelectric elements are coupled to chamber and further coupled to a slug. Optical waveguides are coupled to the channel. The contacts are coupled to a plurality of liquid metal globules, wherein one or more of the plurality of liquid metal globules are coupled to a slug. One or more piezoelectric elements are actuated, causing the slug to be moved within the channel. The motion of the slug is operable to block or unblock one or more of the plurality of optical waveguides.

Abstract: A method and apparatus for maintaining a liquid metal switch in a state of readiness for switching. The liquid metal switch has a liquid metal volume contained in a cavity of a switch body. A signal path though the cavity is made or broken by energizing an actuator to move the liquid metal volume within the cavity in response to a switching signal. To maintain readiness, a signal generator supplies a vibratory signal to the actuator. The resulting vibrations in the liquid metal volume allow the liquid metal volume to be subsequently moved with reduced power.

Abstract: A driving device for handicrafts with acousto-optic control and driven by batteries comprises a base, a switch and a power connector at a base cavity of the base, a motor in the base which controls a rotating axis that extends to the surface of the base, a rotating plate connected to the rotating axis, a frame mounted on the rotating plate, a strip structure on external side of the frame with teeth structures on each side respectively which can slide in a sliding groove, a hole leading into the base on each side of the sliding groove respectively, small lamps under the holes, a pipe in each hole where handicrafts can be fixed, a gear mounted on the pipe to match the teeth of the strip, a battery compartment and a control circuit in the base which includes a sound inductive circuit and a light inductive circuit.

Abstract: This invention provides a cutting tool, comprising a sleeve enclosing a suction chamber where, during use, a reduced pressure prevails and wherein a cutting member is arranged so as to be movable along a suction opening provided in the wall of the sleeve. The wall of the sleeve forms a light conductor. The sleeve can be tubular and is preferably manufactured from light conduction material, in particular glass.

Abstract: An adjustable positioning mechanism for positioning an optical element relatively to a second element is provided. The adjustable positioning mechanism comprises a reference plate having a predetermined shaped socket providing a reference mating surface, and a mobile member for holding the optical element. The mobile member has a shaped mating portion at least part of which is defined by a spherical surface adapted for fitting into the reference plate socket and abutting against the reference mating surface, thereby providing a pivot type of joint between the reference plate and the mobile member. The adjustable positioning mechanism is also provided with a deformable maintaining element connected to the mobile member acting against the reference plate and adapted to rotatively hold the mobile member and the reference plate together in cooperation with the pivot joint.

Abstract: This invention relates to an optical fiber for amplification suitable for amplifying signals in the L-band, an optical fiber amplifier including the optical fiber, and an optical transmission system. The optical fiber amplifier according to the invention includes a silica-based optical fiber as an optical fiber for amplification, which has a core region doped with Er and Al. The optical fiber for amplification has an Er concentration of 1,500 wt.ppm or less, and has the characteristics at a wavelength of 1.53 ?m of: an absorption loss of 10 dB/m or more but 25 dB/m or less; and an unsaturated absorption of 900 dB or less.

Abstract: A heating module keeps a length of erbium-doped optical fiber at a constant temperature. The heating module includes the erbium-doped optical fiber, a heating element, and a temperature sensor embedded in a flexible circuit substrate. Insulating and packaging layers may be placed around the flexible circuit substrate.

Abstract: Transparent parallel planar plates which are members for retaining an optical waveguide are provided erectly in an optical path of light in a transparent vessel in advance. An optical fiber is fixed into the transparent vessel while the optical fiber penetrates the transparent vessel, and an optical sensor is also disposed adjustably. Next, a first photo-curable resin solution is injected into the transparent vessel, and light with a predetermined wavelength for curing is emitted from the optical fiber so that the optical waveguide is self-formed by polymerization reaction. Because the parallel planar plates are transparent, the optical waveguide is formed so as to be extended again from the emission ports of the parallel planar plates. Finally, the optical waveguide is formed so as to reach a bottom surface of the transparent vessel.

Abstract: The invention relates to a line for processing an optical fiber having first and second ends, the line comprising a support for receiving a reel with the fiber wounded thereon; a de-winder for unwinding the fiber without substantial rotation of the reel; and a processing station for receiving the optical fiber from said de-winder to perform a processing on a portion of the optical fiber. The invention also relates to a method for writing a grating on a fiber having first and second ends, the fiber being wounded on a first reel and being capable of being wounded on a second reel, the method comprising connecting the first end of the fiber to a circulator; connecting said circulator to a source of light and to a first measurement means; de-winding the fiber from the first reel without rotation of the reel; writing a grating on the fiber with a source of radiation; and measuring reflection spectra of the grating with said first measurement means.

Abstract: An array of micro-optical components includes at least two micro-optical components. Each micro-optical component includes a refractive surface and a corresponding compensation surface for the refractive surface. The corresponding compensation surface includes a corresponding compensation feature when the refractive surface deviates from a desired optical performance. The micro-optical component provides the desired optical performance. At least two refractive surfaces of the array of micro-optical components are formed to have substantially a same desired optical performance. The array of micro-optical components includes at least one corresponding compensation feature, at least two compensation surfaces of the array of micro-optical components being different from one another. The compensation surface may be created after measuring the refractive surface.

Abstract: A method of generating a pulse width modulated (PWM) signal receives digital demand data comprising at least one more significant bit and at least one less significant bit. The PWM signal comprises a sequence of one or more frames, each frame comprising a plurality of PWM pulses whose duty cycle is substantially governed by the at least one more significant bit. At least one of its PWM pulses is selected to have its duty cycle modified in response to the at least one less significant bit. Each of the at least one less significant bit uniquely mapping onto the at least one selected PWM pulse of the frame. An apparatus operable according to this method includes an optical attenuator whose optical attenuation is dependent upon its temperature and in which the temperature and, hence, the attenuation is controlled using the above PWM signal.

Abstract: In one form, one or more micropumps and optical micro-detectors are on a substrate, ideally many per square centimeter, each detecting fluid moved by its pump. A second form has many waveguides and, intersecting each, a fluid chamber controlling radiation in the guide; the device is best immersed in a fluid that moves in and out of chambers, intercepting radiation to yield position data—transmitted e.g. wirelessly for external reception. The device can be a chip in a live creature (e.g. implanted, or in blood); data go to a wireless receiver. Each guide ideally couples to a radiation source and detector. In a third form a membrane deflects a radiation-interacting fluid in a plenum; liquid moves between the plenum and a tube. The plenum cross-section is many times the tube's; radiation in the tube is monitored. Deflected liquid in the tube controls specimen movement to and from the tube.

Abstract: The field of the invention is that of chromatic dispersion compensation modules and of methods of designing chromatic dispersion compensation modules. The design method includes an optimization step consisting in reducing an original quality criterion. The compensation optical fiber of the module has a chromatic dispersion less than a first threshold and chromatic dispersion sufficiently negative for the quality criterion to be less than a second threshold.

Abstract: A lithographic process is used to place a marking on a waveguide to indicate optical channels within the waveguide. A photonic component is positioned against the waveguide based on the markings and adjusted until aligned.

Abstract: An apparatus for determining when a door connected to a wall has opened. The apparatus includes a mechanism for transmitting an optical signal from a first point to a second point. The apparatus includes a mechanism for interrupting the signal from reaching the second point from the first point when the door is open. The interrupting mechanism contacting the transmitting means. A method for determining when a door has opened. An apparatus for interrupting an optical signal transmitted from a first point to a second point through a first fiber and at least a second fiber when a door is opened.

Abstract: Interference filters which are optical components are erected in advance on optical paths in a transparent container, and the transparent container is filled with a photo-curable resin solution. Further, a jig is prepared for manufacturing an optical waveguide device. The jig includes a housing, and holes. On this occasion, positions of the holes are set such that light input through the hole reaches the holes via the interference filters. Optical fibers are fitted into the holes of the housing and the housing is mounted on the transparent container. Next, light at a predetermined wavelength is guided into the optical fibers so that optical waveguides are formed in the photo-curable resin solution. Next, the photo-curable resin solution is exchanged for a low-refractive-index photo-curable resin solution and then the low-refractive-index photo-curable resin solution is solidified wholly by ultraviolet light. Finally, for example, an optical fiber, a light-receiving element, etc. are provided.

Abstract: Methods and systems for marring the surface of a fiber optic substrate by pressing a length of the substrate against an elongate support with at least one roller and causing relative lengthwise movement between the roller and support with the roller pressing the substrate against the support and the roller rolling along the substrate. One of the roller and support may have an abrasive surface for marring the substrate during such relative lengthwise movement between the roller and support. Alternatively, the abrasive surface may be on a sheet supported by the support.

Abstract: A packaging structure for supporting a segment of optical fiber provided with a wavelength filter optically coupled thereto. The wavelength filter defines a temperature dependent center wavelength and a rate of wavelength drift per temperature change. The optical fiber is attachable about a fiber fast first attachment point and a fiber second attachment point to a housing having a generally hollow housing body for protecting the wavelength filter. The structure allows for both adjustment of the center wavelength and also for adjustment of the rate of wavelength drift per temperature change independently from the adjustment of the center wavelength. The wavelength excursion is typically adjusted by adjusting the spacing between the fiber first and second adjustment points. The center wavelength is typically independently adjusted by adjusting the tension imparted on the wavelength filter when the fiber is attached to the housing.

Abstract: A luminescent material, such as phosphor, is radiated by energy propagated from the side of an optical fiber, causing the luminescent material to emit visible light. The luminescent material can be of: a coincidentally-excited type, requiring the absorption of two wavelengths of radiation to emit visible light; memory-type, requiring absorption of one wavelength of charging radiation and absorption of another wavelength of controlling radiation to emit visible light; and quenchable type, requiring absorption of one wavelength of radiation to emit visible light and absorption of another wavelength of radiation to stop, i.e. quench, the emission of visible light. Two side-emitting optical fibers can be used, with each optical fiber providing one of the needed radiation wavelengths. One embodiment of the invention involves a matrix of optical fibers forming an optical display panel made using coincidentally-excited phosphors.

Abstract: The invention relates to systems and methods for characterizing optical devices, and particularly to one that characterizes optical devices such as fiber Bragg gratings. In one embodiment, a system and method include the use of two light sources and four detectors to detect light transmitted through an optical device both before and after the light has been transmitted in each direction through the device.

Abstract: A plug for a connector arrangement consisting of a plug and an associated mating plug, has a housing which has at least one axial receiver for an optical fiber and a protective device movably mounted in the housing for protecting the optical fiber. The protective device according to the invention is designed as a slide which can be moved axially to the receiver and the slide has a aperture for the optical fiber and/or the receiver.