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6885803 |
Method to produce stress-free optical waveguides to reduce stress-induced birefringence in planar lightwave circuit (PLC) devices
A method of forming a waveguide comprising the following steps. A structure is provided. An underclad layer is formed over the structure and a core layer is formed over the underclad layer....
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6885788 |
Light-reception/emission device built-in module with optical and electrical wiring combined therein, method for producing the module and assembling member of the module
A light reception/emission device built-in module with optical and electrical wiring combined therein includes: an optical waveguide layer including a core portion and a cladding portion; first and...
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6879765 |
Integrated selectable waveguide for optical networking components
An integrated selectable waveguide device is shown that compensates for misalignment problems between an output optical port and an input optical port. In one example, the output port is part of an...
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6879743 |
Crystal-core fiber mode converter for low-loss polarization-insensitive planar lightwave circuits
A planar lightwave circuit comprises a first portion of a waveguide, a second portion of a waveguide, and a segment of crystal core fiber coupling the first portion to the second portion of the...
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6870992 |
Alignment apparatus and methods for transverse optical coupling
Optical components may be aligned for transverse-optical coupling by: fabricating a first optical component on a substrate; fabricating an alignment member on the substrate suitably positioned...
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6868215 |
Dye thin film, production method thereof, optical switch, optical distributor, optical modulator and optical switch array
A dye thin film containing a dye compound represented by the general formula (I), an optical switch, an optical distributor, an optical modulator and an optical switch array having the dye thin...
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6862394 |
Wavelength tunable laser and method of formation
A method of increasing the monomolecular recombination and the immunity to noise of a continuously tunable laser is disclosed. A concentration of recombination centers in the range of about 1×10...
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6859574 |
N×N switching arrangement of two planar arrays without waveguide crossings
An N×N crossconnect switch is implemented without the use of waveguide crossings. In one embodiment, the N×N crossconnect switch uses two non-parallel planar arrays of 1×2 and 2×1 switching...
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6856737 |
Nonlinear optical device
There is provided a non-linear optical device for enhancing the bandwidth accessible in the nonlinear generation of an optical signal. The device comprises a planar optical waveguide, the planar...
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6856709 |
Optical modulation device
The provision of a coplanar waveguide coupled with a microstrip line with a transmission line substrate that is used between two functional units of different impedance characteristics allows the...
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6853793 |
Attenuator having reduced optical loss in the pass mode
An optical device includes a ridge waveguide defined by a ridge extending from a slab of a light transmitting medium. The optical device also includes trenches extending into the slab of light...
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6853770 |
Method for aligning and assembling optical demultiplexer module, and automatic aligning mechanism for optical demultiplexer module
The present invention relates to a method of aligning and assembling an optical demultiplexer module having an input fiber, a collimator lens, a diffraction grating, and a photodetector array, and...
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6850683 |
Low-loss waveguide and method of making same
A method of reducing the scattering losses that involves smoothing of the core/cladding interface and/or change of waveguide geometry in high refractive index difference waveguides. As an example,...
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6847750 |
Thermo-optical waveguide switch
The invention relates to a thermo-optical waveguide switch which is located on a substrate. Said switch comprises a glass layer, through which a waveguide extends. A hollow chamber which lies...
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6842576 |
Polymer lightguide
The present invention provides a polymer lightguide which has a waveguide layer comprising a polyimide having a repeating unit represented by general formula (I):
wherein R represents a...
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6839477 |
Wavelength-division-multiplexer/demultiplexer using parabolic horn type waveguide
Disclosed is a wavelength-division-multiplexer/demultiplexer using a parabolic horn-type waveguide provided with a grating for demultiplexing a multiplexed optical signal to channels, an input...
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6836608 |
Planar optical waveguide, method for manufacturing the same and polymer optical waveguide
A planar optical waveguide includes a layered film formed on a substrate, and an optical waveguide core formed in the layered film. A cross section of the optical waveguide core is substantially...
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6834151 |
Optical waveguide and fabrication method
An optical waveguide with at least a guiding lamina ( 10 ) of optical material bonded by direct interfacial bonding to a superstructure lamina ( 20 ) of optical material, in which regions of the...
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6834152 |
Strip loaded waveguide with low-index transition layer
A strip loaded waveguide comprises a slab and a strip, wherein the strip is separated from the slab. Nevertheless, a guiding region is provided for propagating an optical mode and this guiding...
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6829398 |
Optical waveguide apparatus
The optical waveguide apparatus includes an optical waveguide sheet, and an optical device integrated with an optical-path converting unit. The optical sheet can include a guide unit for setting...
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6825542 |
High speed waveguide photodetector
The present invention relates to a semiconductor photodetector. The photodetector is a waveguide photodetector, which comprises: a waveguide ( 1,2,3 ) having a III-V ridge structure including an...
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6823111 |
Optical waveguide filters
A grating, suitable for filtering optical radiation, comprises a plurality of concatenated grating sections each having different physical characteristics as compared with adjacent grating...
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6823094 |
Interferometer and its fabrication method
An interferometer includes a waveguide core, and thin film heaters with widths W 1 and W 2 . The thin film heaters are mounted directly above the waveguide core, and operate as two types of...
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6819861 |
Laminated optical waveguide array, beam collecting device and laser emission device
A beam collecting device and a laser emission device are disclosed incorporating a laminated optical waveguide array and refraction means therein. The laminated optical waveguide array is composed...
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6816648 |
Integrated waveguide gratings by ion implantation
Integrated semiconductor waveguide gratings, methods of manufacture thereof and methods of apodizing thereof are described. A semiconductor waveguide grating includes a substrate, a cladding layer...
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6813431 |
Integrated photodevice and waveguide
A waveguide includes a waveguide core that has a bottom surface and a top surface that defines an angle. The waveguide also includes a cladding layer adjacent to the bottom surface. The cladding...
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6808938 |
Method and apparatus for assaying a drug candidate to estimate a pharmacokinetic parameter associated therewith
A method and apparatus for assaying a drug candidate with a biosensor having one or more sensing surface-bound biomolecules associated therewith are disclosed. The method comprises the steps of...
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6810189 |
Optical waveguide and method for preparing the same
A polymeric optical waveguide substrate includes a first region provided thereon with a polymer optical waveguide and an optical waveguide-free second region, the first and second regions being on...
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6807353 |
Microfabricated bragg waveguide
A microfabricated Bragg waveguide of semiconductor-compatible material having a hollow core and a multilayer dielectric cladding can be fabricated by integrated circuit technologies. The...
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6807327 |
Semiconductor optical device
A multilayer semiconductor portion is provided on a semiconductor substrate on side faces of a semiconductor portion. A second conductive type III-V compound semiconductor layer is provided on the...
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6800424 |
Optical devices made from radiation curable fluorinated compositions
The invention provides organic optical waveguide devices which employ perfluoropolymeric materials having low optical loss and low birefringence. An optical element has a substrate; a patterned,...
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6801702 |
Electro-optic device
An electro-optic device is disclosed for altering the density of charge carriers within an integrated optical waveguide. The device includes a substrate, and an integrated optical waveguide...
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6801701 |
System for bending polymer or glass optical wave guides
A bend (B) in a wave guide (G) is formed having two angled cuts ( 201, 202 ) on either side of a middle pivot point ( 207 ). The angled cuts ( 201, 202 ) extend through a first side of a cladding...
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6801703 |
Freestanding athermal polymer optical waveguide
An optical waveguide is disclosed. The waveguide includes a first cladding layer having a first exposed surface portion and a second surface portion generally opposing the first exposed surface...
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6798929 |
Piezoelectric tunable filter
A piezoelectric tunable filter ( 10 ) includes a ring ( 12 ) made of piezoelectric material surrounding a thin film waveguide ( 14 ), and an actuator ( 17 ) surrounding the ring. The actuator...
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6788867 |
Backplane, printed wiring board, and/or multi-chip module-level optical interconnect layer having embedded air-gap technologies and methods of fabrication
Optical interconnect layers and methods of fabrication thereof are described. In addition, the optical interconnect layers integrated into devices such as backplane (BP), printed wiring board...
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6788866 |
Layer materials and planar optical devices
Structures include a substrate with a release layer on the surface of the substrate and a uniform material over the release layer. The release layer generally includes powders or partly sintered...
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6788863 |
Optical delay device
An optical device is provided comprising a delay region having a photonic band structure, an optical input, an optical output, wherein the optical input is adapted to couple input optical signals...
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6785449 |
Multimode interference coupler, multi-layer optical planar waveguide using the same and method of manufacturing the same
The present invention relates to a multi-layer optical planar waveguide which is vertically coupled using multimode-interference couplers and to the method of manufacturing the same. The purpose of...
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6785435 |
Waveguides and devices incorporating optically functional cladding regions
Waveguides and integrated optical devices incorporating optically functional cladding regions are provided. In accordance with one embodiment of the present invention, an electrooptic clad...
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6785454 |
Optical waveguide and optical circuit base component
In a conventional optical waveguide using a photonic crystal, loss of light occurs in the substrate therebelow. The invention provides an optical waveguide comprising a substrate, a core portion...
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6784603 |
Fluorescent lighting apparatus
A light source useful for a wide variety of lighting applications such as signage, architectural or automotive designs, as well as cosmetic and/or functional features for other products can be...
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6782177 |
Method for manufacturing an optical device with a defined total device stress
A method for manufacturing an optical device with a defined total device stress and a therefrom resulting defined birefringence and a therefrom resulting defined optical polarization dependence is...
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6782179 |
Surface plasmon polariton band gap structures
The present invention provides a method and devices for controlling the propagation of Surface Plasmon Polaritons (SPPs) using Surface Plasmon Polariton Band Gap (SPPBG) regions. The SPPBG regions...
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6782163 |
Waveguide grating arrangement using a segmented reflector
An optical imaging arrangement includes a wavelength router having ( 1 ) N waveguides connected to different locations of the input curved boundary of the router, ( 2 ) a grating that forms...
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6778750 |
Polarization-insensitive planar lightwave circuits and method for fabricating the same
A planar lightwave circuit comprises a plurality of waveguides formed with a geometrical or refractive index properties that renders the planar lightwave circuit substantially polarization...
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6775427 |
Laterally coupled wave guides
A system capable of creating multiple beams of light using laterally coupled waveguides. Each beam is of a different central wavelength, capable of being generated on chip and coupled into a single...
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6775425 |
Method and apparatus for adjusting the phase of an optical beam
Method and apparatus for adjusting the phase of an optical beam. In one aspect of the present invention, an optical device includes a substrate through which an optical beam is to be directed along...
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6775453 |
On-chip graded index of refraction optical waveguide and damascene method of fabricating the same
A graded index of refraction optical waveguide is formed in interlayer dielectric material located above a substrate an integrated circuit-like structure. The waveguide includes a refractive layer...
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6775426 |
Polarization mode dispersion compensating device using optical XOR circuit
A polarization mode dispersion compensating device is formed by a polarization mode dispersion equalizer, a polarization component splitting unit for splitting a part of the polarization mode...
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