Matches 301 - 340 out of 340 < 1 2 3 4 5 6 7
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4603940 Fiber optic dye amplifier  
A fiber optic amplifier as disclosed, comprised of a fiber optic, monomode waveguide which has a core and cladding. Part of the cladding over a predetermined region is removed and replaced by an...
4601541 Fiber optic directional coupler  
Apparatus and method of manufacture for coupling optical power between two strands of fiber optic material in a given direction of propagation. The coupler employs generally parallel, intersecting...
4593968 Potting techniques for fiber optical couplers  
A coupler for coupling light from one single mode optical fiber to another. Two or more optical fibers are provided in twisted or braided adjacency so that the evanescent field of one optical fiber...
4589728 Optical fiber polarizer  
A fiber-optic polarizer comprising the combination of an optical fiber having a core and cladding with different refractive indices and forming a single-mode guiding region, the core having a...
4589725 Optical-fiber directional coupler using boron oxide as interstitial material  
An evanescent-field coupler for an optical fiber having a core and a cladding forming a guiding region located sufficiently close to the surface of the fiber along a selected length thereof to...
4588255 Optical guided wave signal processor for matrix-vector multiplication and filtering  
An array (48, 49, 50, 51) of fiber optic couplers coupling an input (45) and an output (46) waveguide. The output waveguide (46) is routed among the couplers of the array such that either backward...
4560234 Fiber optic switchable coupler  
A pair of optical couplers are arranged in series with a pair of outputs from the first optical coupler supplying the pair of inputs to the second optical coupler. At least one of the optical...
4558920 Tapped optical fiber delay line  
A fiber optic tapped delay line is disclosed which has a number of taps simultaneously fabricated in a single length of optical fiber. The light output from each tap is detected by either an...
4557553 Method of wavelength multiplexing in fused single-mode fiber couplers  
An apparatus and method of entering and extracting a discrete wavelength of optical data in a single-mode duplex optical data transmission system relies on a selective evanescent field coupling. A...
4557551 Non-linear optical fiber coupler and a method of making same  
A non-linear waveguide component is formed by a pair of optical fibers disposed in side-by-side relation and defining between them a space of elliptical cross-section. A single crystal of...
4556279 Passive fiber optic multiplexer  
A passive, frequency selective, fiber optic multiplexer, comprises a directional coupler in which a pair of single mode optical fibers are accurately positioned to provide evanescent field...
4536058 Method of manufacturing a fiber optic directional coupler  
A fiber optic directional coupler comprises a pair of bases, with respective longitudinal, arcuate grooves formed therein on confronting faces thereof, for mounting a pair of optical fibers in...
4533208 Evanescent-wave star coupler on a substrate  
A star coupler is described in which a plurality of optical fibers are embedded in a first rigid substrate. The fibers may be etched or polished to a core area to expose a first evanescent coupling...
4530097 Brillouin ring laser  
A Brillouin ring laser comprises a fiber optic resonator formed from a loop of fiber optic material and a fiber optic directional coupler for optically closing the loop.
4514057 Fiber optic coupler array and fabrication method  
An assembly of fiber optic couplers of substantially identical form in an integrated array comprising two sets of optical fibers arranged side by side across an arcuate surface, epoxied in place,...
4511207 Fiber optic data distributor  
A fiber optic data distributor utilizes a one-by-n single mode optical fiber directional coupler to distribute data from a single fiber to a plurality of separate fibers. The separate fibers may...
4482203 Adjustable coupling device for a fiber-optic power divider  
An adjustable coupling device for fiber-optic power dividers in which the coupling characteristics of the divider are influenced by application of transverse forces on the optic fibers in a...
4479701 Dual coupler fiber optic recirculating memory  
A fiber optic recirculating memory is disclosed which utilizes dual couplers to form a splice-free recirculating memory device from a length of single mode optical fiber forming a loop which acts...
4473270 Splice-free fiber optic recirculating memory  
A fiber optic recirculating memory is disclosed which utilizes a single splice-free single mode optical fiber coupled to itself to form a loop which acts as a delay line. A single signal supplied...
4461536 Fiber coupler displacement transducer  
A transducer for the measurement of minute displacements incorporates a fiber optic coupler having a coupling efficiency which varies in relation to the relative position of coupler elements. The...
4453802 Evanescent-wave coupling device  
A dielectric waveguide is disposed adjacent to a diode array which allows for coupling of energy therebetween. The waveguide has a core section and a cladding section encompassing a core section...
4444460 Optical fiber apparatus including subtstrate ruggedized optical fibers  
Optical devices having one or more rigidly supported optical fibers and a method of making thereof are provided in which one or more optical fibers are interfaced with a rigid support material by...
4387954 Method for fabricating an optical waveguide evanescent wave coupler having an interleaved film  
A method and an apparatus is disclosed for making an evanescent wave coupler. Two optical waveguides have a portion of the cladding material removed until the core is exposed. The two optical...
4363533 Concentric fiber optical transducer  
An optical transducer (10) having a plurality of concentric cores (15,17). An intermediate cladding (16) is disposed between the inner and outer cores and an outer cladding (18) surrounds the outer...
4360247 Evanescent fiber optic pressure sensor apparatus  
An apparatus is disclosed for optically sensing pressure using evanescent wave coupling between two fiber optics. A support base with a channel holds the two waveguides, one on top of the other,...
4342499 Communications tuning construction  
A wave length filter construction using fiber optics techniques and devices for selective tuning. By core coupling for a portion of the fiber lengths, a communications facility is provided and...
4315666 Coupled communications fibers  
A coupling structure for coupling light intelligence between fiber optic elements. Both abuttment and lateral coupling structures are presented.
4268116 Method and apparatus for radiant energy modulation in optical fibers  
Radiant energy is caused to modulate in phase and frequency in a single mode optical fiber by means of a relatively movable, spatially periodic perturbation.
4264126 Optical fiber-to-fiber evanescent field coupler  
A single-mode or multimode, optical, fiber-to-fiber coupler which couples such fibers together so that an optical beam guided by one fiber is coupled to the other fiber through evanescent field...
4136929 Apparatus for generating light pulse train  
The ends of a length of optical fiber are coupled to each other to form a closed loop so that light wave may propagate freely through the looped optical fiber. At one or more portions of the looped...
4128299 Waveguide optical modulator  
Light propagating in a waveguide is modulated by deforming a cladding on at least one surface of the waveguide. The cladding has a thickness at least equal to the exponential depth of the...
4102560 Optical coupler  
A pair of diffraction gratings are disposed between a fiber and a waveguide carried by a substrate. The gratings each have a common spatial frequency component that couples light between the fiber...
4097117 Optical coupler having improved efficiency  
The optical efficiency, with which a coupling portion of a fiber-optic can be coupled by evanescent fields to a planar optical waveguide through a phase-matching diffraction grating on the surface...
4097118 Optical waveguide coupler employing deformed shape fiber-optic core coupling portion  
More efficient optical coupling between light wave energy traveling in a fiber-optic, which may be a multimode fiber-optic, and single or few mode light wave energy traveling in a planar optical...
4018506 Fiber-optic to planar-waveguide optical coupler  
By coupling light from a coupling portion of a thin fiber core to a planar waveguide film through the thickness of the substrate supporting the film, sufficient spreading by diffraction takes place...
3992079 Frequency tunable acoustooptic mode filter  
A system using collinear acoustooptic interactions in optical waveguides through which waveguide mode conversion is achieved. The system involves a surface acoustic wave interaction with an...
3957343 Optical communications systems  
Energy propagating in a dielectric optical waveguide may be transferred from one mode of propagation to another by inducing a spatially undulatory variation in refractive index in the core of the...
3912363 Optical fiber to planar waveguide coupler  
Optical coupling between a fibre-optic waveguide and a planar optic waveguide is achieved by providing techniques for phase matching intercoupled evanescent fields of light wave energy traveling...
3902133 Monolithic source for integrated optics  
The disclosure relates to a semiconductor diode laser and a thin film optical waveguide, wherein the output of the laser is coupled into the waveguide in a monolithic device structure. A transfer...
3372969 High resolution filter for laseremissive energy  
Matches 301 - 340 out of 340 < 1 2 3 4 5 6 7