|
Match
|
Document |
Document Title |
|
|
7010196 |
Method of forming laser induced grating pattern
A method of forming a laser-induced grating comprising the steps of providing a substrate with a polished surface having a plurality of reflective regions thereon, providing a pulsed layer beam and...
|
|
|
7006730 |
Multichannel integrated tunable thermo-optic lens and dispersion compensator
A thermo-optic lens of the present invention includes a plurality of parallel heating elements having substantially constant center-to-center spacing and respective dimensions varying from the...
|
|
|
7006731 |
Apparatus and method for adjusting the spectral response of an optical waveguide grating
Apparatuses and methods for adjusting the spectral response of an optical waveguide grating. A controlled extension is imparted to a surface of a support member and an optical waveguide grating is...
|
|
|
7006729 |
Optical components having reduced insertion loss
An optical device is provided which includes a slab waveguide and at least one input waveguide coupled to a first side of the slab waveguide. The device also includes a plurality of output...
|
|
|
7006733 |
Method and apparatus for channel selective control of light propagation in an optical waveguide
A variable optical device for selectively controlling propagation of light within an optical waveguide. The optical device comprises: a relief modulation defining a grating disposed proximal the...
|
|
|
7006727 |
Combined multiplexer and demultiplexer for optical communication systems
A combined multiplexer/demultiplexer for use in optical communication systems is disclosed. The combined multiplexer/demultiplexer includes a plurality of waveguide arrays and a plurality of signal...
|
|
|
7003196 |
External grating structures for interfacing wavelength-division-multiplexed optical sources with thin optical waveguides
A coupling arrangement for allowing multiple wavelengths to be coupled into and out of a relatively thin silicon optical waveguide layer utilizes a diffractive optical element, in the form of a...
|
|
|
7003190 |
Switching matrix configuration for reducing loss
The present invention discloses a switching matrix configuration to reduce the optical propagation losses and coupling losses. The switching matrix comprises M horizontal waveguides interested with...
|
|
|
7003195 |
Dynamic power equalizer
A dynamic power equalizer comprises an array waveguide grating having an input waveguide and an output waveguide at one end, and an input waveguide group and an output waveguide group at the other...
|
|
|
7003199 |
Tunable dispersion compensator for optical communication system
The present invention relates to a tunable distribution compensator, including: an optical fiber having a chirped optical fiber grating; first and second frames having first and second stepped...
|
|
|
7003198 |
Integrateable band filter using waveguide grating routers
The inventors propose herein a novel band filter design for planar lightwave circuits. In one embodiment of the present invention, the band filter includes two waveguide grating routers...
|
|
|
7003187 |
Optical switch with moveable holographic optical element
An optical switch formed of a holographic optical element (HOE) disposed above a top surface of a substrate and moveable relative thereto is shown. Light is traveling through the substrate under...
|
|
|
6999662 |
Segmented waveguide array grating filters
An optical device for filtering an optical signal is described. The optical filtering device comprises an optical input receiving the optical signal; an elongated waveguide connected to the input...
|
|
|
6999660 |
Highly efficient focusing waveguide grating coupler using leaky mode
Provided is a focusing waveguide grating coupler using a leaky mode which can form single output beam while relieving the dependency on manufacturing processes. The focusing waveguide grating...
|
|
|
6999156 |
Tunable subwavelength resonant grating filter
In accordance with the invention, a tunable subwavelength resonant grating filter comprises a liquid crystal cell having a pair of major surface walls. One wall of the cell is a coated...
|
|
|
6999659 |
Fiber transmission element for generating a chromatic dispersion
The invention describes a transmission component for producing chromatic dispersion which can be predetermined, having
a glass fiber optical waveguide in which it is possible to carry not...
|
|
|
6996316 |
Large diameter D-shaped optical waveguide and coupler
A large diameter D-shaped optical waveguide device 9 , includes an optional circular waveguide portion 11 and a D-shaped waveguide portion 10 having at least one core 12 surrounded by a...
|
|
|
6996296 |
Polarizing device
The present invention provides polarizing devices and illumination devices that include the polarizing devices. The polarizing devices and illumination devices can be advantageously used in a wide...
|
|
|
6996300 |
Device for optical signal transmission between two units movable relative to each other
A device for transmitting information between at least two units mobile relative to each other comprises a light guide having a light-guiding medium, the optical properties of which can be changed...
|
|
|
6996343 |
Dispersion compensator
A dispersion compensator having relatively uniform transmission characteristics over the bandwidth of a communication channel. The compensator is designed to process an optical signal corresponding...
|
|
|
6993220 |
Temperature-compensated optical fiber component
A temperature-compensated optical fiber component for use in high-density WDM optical communication includes an optical fiber which has a Bragg grating serving as a monochromatic filter, an inner...
|
|
|
6993258 |
WDM transmitter
A WDM transmitter comprising an array of M pump lasers multiplexed by an M×N multiplexer, in the form of a coupler, and used to feed an array of N optically pumped fiber lasers emitting at...
|
|
|
6993241 |
Bragg grating optical fiber
The present invention provides an optical fiber providing high photosensitivity in the absence of hydrogen loading as well as a low numerical aperture. One aspect of the present invention relates...
|
|
|
6991891 |
Optical fiber laser
A method of fabricating a distributed feedback optical fiber laser, comprises the step of exposing an optical fiber ( 20 ) to a transverse light beam ( 30 ) to form a grating structure in a section...
|
|
|
6993223 |
Multiple distributed optical structures in a single optical element
An optical apparatus comprises an optical element having at least two sets of diffractive elements, each diffractive element comprising at least one diffracting region thereof. At least one...
|
|
|
6993222 |
Optical filter device with aperiodically arranged grating elements
A method for producing aperiodic gratings and waveguides with aperiodic gratings uses a simulated annealing process that starts with a random configuration of grating elements and iteratively...
|
|
|
6993217 |
Optical switch device
In an optical switch device: output waveguides are arranged with such a pitch as to realize a split wavelength gap equal to or smaller than half of a gap between operating wavelengths of optical...
|
|
|
6992825 |
Volume phase grating, a method for producing such a volume phase grating, an optical module and a semiconductor laser module using such a volume phase grating
In a volume phase grating, a plurality of phase gratings for causing a refractive index of a substrate having an incident surface and a launched surface facing each other to be cyclically changed...
|
|
|
6990272 |
Apparatus for generating an optical interference pattern
Apparatus for producing an interference pattern from an input optical beam, including a first optical element for separating the input optical beam into a plurality of divergent optical sub-beams...
|
|
|
6990276 |
Optical waveform recognition and/or generation and optical switching
A planar optical waveguide has sets of diffractive elements, each routing between input and output optical ports diffracted portions of an input optical signal. The diffractive elements are...
|
|
|
6990273 |
Optical multi-band device with grating
Apparatus for filtering optical radiation, which apparatus comprises a waveguide ( 50 ), and which waveguide ( 50 ) comprises a grating ( 51 ) having a first reflection wavelength band ( 52 )...
|
|
|
6990275 |
Stray light absorber including grating array
An optical component comprising an optical waveguide and adjacent to it at least one grating array adapted to reflect stray light away from said optical waveguide. The use of a grating array with a...
|
|
|
6987897 |
Fiber-optic flow cell and method relating thereto
The present invention is for a fiber optic flow cell. The flow cell comprises a substrate having at least one sample channel and at least one optical fiber channel holder. At least one optical...
|
|
|
6987910 |
Silicon light waveguide with MOS capacitors positioned on the waveguide
The present invention provides a silicon wave-guide ( 3 ), with a silicon oxide cladding ( 2, 4 ) on a silicon substrate ( 1 ). At predetermined positions along the length of the wave-guide, are...
|
|
|
6987908 |
Grating dispersion compensator and method of manufacture
A grating dispersion compensator (GDC), including: a substrate; a dielectric grating layer; a planar waveguide; and a passivation layer. The dielectric grating layer may be formed on the substrate...
|
|
|
6987909 |
Optical systems and athermalized optical component apparatuses and methods for use therein
An athermalized optical fiber component assembly including a limiting member, a mounting structure attached to the limiting member, a temperature compensating substrate attached to the mounting...
|
|
|
6987901 |
Optical switch with 3D waveguides
An optical switch for routing optical signals between optical fibers is shown. Signals are guided internally in an optically transparent substrate by buried waveguides that are directly coupled to...
|
|
|
6985664 |
Substrate index modification for increasing the sensitivity of grating-coupled waveguides
A grating-coupled waveguide (GCW) and a method are described herein that can be used to detect the presence of a biological substance (e.g., cell, drug, chemical compound) in a sensing region of...
|
|
|
6985663 |
Optical waveguides and grating structures fabricated using polymeric dielectric compositions
Using polymeric dielectric materials (preferably materials derived from bisbenzocyclobutene monomers) and an electron beam lithography process for patterning this material, we have developed a...
|
|
|
6985654 |
Device and a method for transforming signal propagation mode by interference
An optical device (D) is dedicated to transforming the propagation mode of optical signals. The device comprises mode transformation means ( 3–5 ) associated with a multimode fiber ( 2 ) and...
|
|
|
6985656 |
Temperature-compensated planar waveguide optical apparatus
An optical apparatus (spectral filter, temporal encoder, or other) comprises a planar optical waveguide having at least one set of diffractive elements. Each diffractive element set routes by...
|
|
|
6980578 |
Optical bandpass filter using long period gratings
The specification describes an optical filter wherein long period gratings (LPGs) are used in a new configuration to provide in-line bandpass filtering of optical signals. In the basic embodiment,...
|
|
|
6980362 |
Optical filters
An optical interference filter ( 2 ) is provided by a substrate ( 1 ) in which is formed a plurality of parallel slots so as to define layers (slots and substrate laminae) of alternating refractive...
|
|
|
6980719 |
Optical device of variable refractive index
The present invention relates to an optical device comprising an ionic conductor and a pair of electrodes, the ionic conductor being made of a material that is transparent to light and contains...
|
|
|
6978066 |
Method for fabricating fiber bragg grating elements and planar light circuits made thereof
A method for fabricating Fiber Bragg Grating elements and planar light circuits made thereof. A mask having a predetermined pattern and a wafer are provided, wherein a light-guiding channel filled...
|
|
|
6978057 |
Optical waveguide and a method for providing an optical waveguide
A laser diode ( 1 ) having an optical path ( 15 ) defined in an active layer ( 2 ) which is sandwiched between a substrate layer ( 3 ) and a top layer ( 4 ) and defined by a ridge ( 14 ) formed in...
|
|
|
6975795 |
Refractive index grating, and mode coupler having a refractive index grating
A refractive index grating has at least one configuration of heating elements on or adjacent to a wave-guiding structure. Regions are introduced into the wave-guiding structure and/or into an...
|
|
|
6975794 |
Method and apparatus for fabricating a waveguide Bragg grating using pulsed light
A system for fabricating Bragg gratings includes an optical waveguide (e.g., an optical fiber, a planar waveguide), an interference pattern generator (e.g., a transmission phase grating such as a...
|
|
|
6972886 |
Variable blazed grating
In one aspect of the invention, an apparatus operable to provide optical signal processing includes an inner conductive layer including an at least substantially conductive material and a plurality...
|
|
|
6973237 |
Method of producing optical fiber grating and production device therefor
A super structure fiber Bragg grating is produced without being limited by a phase mask length. First, a beam is allowed to scan with the relative position between a mask and an optical fiber fixed...
|