Matches 1 - 50 out of 157 1 2 3 4 >


Match Document Document Title
US20150078702 System and Method for an Optical Phase Shifter  
In one embodiment, an optical phase shifter includes a first waveguide phase shifter and a second waveguide phase shifter. The optical phase shifter also includes a first polarization rotator...
US20120281942 PLANAR LIGHTWAVE CIRCUIT AND PRODUCTION METHOD FOR PLANAR LIGHTWAVE CIRCUIT  
A planar lightwave circuit according to the present invention includes at least two interferometers each of which includes a plurality of optical waveguides, and dummy patterns that are provided...
US20130243362 TUNABLE REFLECTORS BASED ON MULTI-CAVITY INTERFERENCE  
A reflective structure includes an input/output port and an optical splitter coupled to the input/output port. The optical splitter has a first branch and a second branch. The reflective structure...
US20140009955 OPTICAL STRUCTURES INCLUDING NANOCRYSTALS  
An optical structure can include a nanocrystal on a surface of an optical waveguide in a manner to couple the nanocrystal to the optical field of light propagating through the optical waveguide to...
US20120189310 BANDWIDTH ADJUSTABLE BANDPASS FILTER  
An apparatus comprising a Mache-Zehnder interferometer. The Mache-Zehnder interferometer comprises: a 1×2 optical splitter having an optical input, a 2×2 optical coupler having first and second...
US20120189238 UNBALANCED MACH-ZEHNDER INTERFEROMETER AND MODULATOR BASED THEREUPON  
There are provided an unbalanced Mach-Zehnder interferometer and a modulator based thereupon. The interferometer comprises a loop comprising a plurality of cascaded segments of...
US20140161384 Integrated Photonic Devices with Reduced Sensitivity to External Influences  
One aspect of the invention relates to a photonic device having a wavelength-dependent transmission or filter characteristic, comprising: a Splitter Polarization Rotator receiving polarized light...
US20110243490 WAVEGUIDE COUPLER FOR OPTICAL TRANSVERSE-MODE MULTIPLEXING  
An optical coupler for coupling a multimode waveguide and two or more other waveguides. In one embodiment, the optical coupler has an optical phase mask disposed between the multimode waveguide...
US20080304832 Optical interconnect  
An optical interconnect includes a translatable optical source; an optical modulator element disposed on a circuit board and configured to receive an optical beam from the optical source; and an...
US20130084076 METHOD FOR OPTICAL PHASE MODULATION, Optical Phase Modulator AND OPTICAL NETWORK USING THE SAME  
An optical phase modulator based on the principles of stimulated Brillouin scattering is disclosed. The optical phase modulator uses a pump wave and a probe wave counte-propagating in an optical...
US20130216175 DUAL POLARIZATION QUADRATURE PHASE SHIFT KEYING OPTICAL MODULATOR  
A DP QPSK optical modulator includes an input port; an optical branching unit; an optical modulation unit having first through fourth Mach-Zehnder interferometers; a first phase-change unit...
US20050175269 Absorbent article with handle  
A disposable absorbent article comprising a chassis comprising a liquid pervious topsheet, a liquid impervious backsheet joined with the topsheet, and an absorbent core interposed between the...
US20120014636 WAVEGUIDE-TYPE OPTICAL CIRCUIT  
A waveguide-type optical circuit comprises an optical coupler being an optical branch coupler constructed from waveguide cores which are closely arranged each other, and dummy patterns that lay...
US20120020607 Optical waveguide device  
An optical waveguide device having multiple functions or high performance, to improve the productivity of products, and to provide an optical waveguide device capable of suppressing deterioration...
US20120093454 Planar waveguide faraday rotator  
A planar core and a cladding disposed on opposite sides of thereof. In the best mode, the rotator includes a very low Numerical Aperture (NA) planar waveguide. The cladding is birefringent and the...
US20120045160 DISPERSION MEASUREMENT APPARATUS  
A dispersion measurement apparatus includes: a pulse generator to output optical pulses including an optical pulse with a first wavelength and an optical pulse with a second wavelength to an...
US20140301693 Optical Modulator Using Waveguides  
In accordance with an optical modulator using waveguides of the present invention, the reflection phenomenon of light is used, so that the optical modulator is neither sensitive to the wavelength,...
US20100014799 Optical structures including nanocrystals  
An optical structure can include a nanocrystal on a surface of an optical waveguide in a manner to couple the nanocrystal to the optical field of light propagating through the optical waveguide to...
US20080112663 Layered electromagnetically responsive assembly  
An electromagnetically responsive element includes sets of arrangements of self-resonant bodies, such as atoms or quantum dots that form an effective dielectric constant, typically at or near a...
US20080044122 Asymmetric Mach-Zehnder Interferometer Having A Reduced Drive Voltage Coupled To A Compact Low-Loss Arrayed Waveguide Grating  
The invention relates to an asymmetric Mach Zehnder Interferometer (MZI) having a reduced drive voltage, coupled to a compact low-loss arrayed waveguide grating (AWG) to provide a broader passband...
US20060159382 Variable optical power limiter  
A variable optical power limiter is disclosed. An apparatus according to aspects of the present invention includes an optical waveguide disposed in semiconductor material. An optical beam is to be...
US20090232438 LOW-SPECKLE LIGHT SOURCE DEVICE  
A laser light source device which can inexpensively achieve a visually recognizable level of speckle reduction is disclosed. The laser light source device includes: a laser module including a...
US20060182381 Foil display with increased brightness using a retro reflector  
A foil display device has a passive plate (4) and a light guide (2) and a flexible foil (3) arranged between them. The foil (3) can selectively be brought into contact with the light guide (2) to...
US20110019955 TUNABLE OPTICAL GROUP DELAY  
This invention provides a balanced thermal approach to the tuning of an optical time delay device in order to eliminate any long-term time response of the device performance due to thermal time...
US20150241633 OPTICAL WAVEGUIDE DEVICE  
An optical waveguide device includes: a mode splitter including a main waveguide in which lights can be propagated in at least two propagation modes with different propagation orders and a...
US20070206903 SBS reduction in optical media  
A method and arrangement for stimulated Brillouin scattering (SBS) reduction in optical media that generate SBS are provided. SBS is reduced by providing a plurality of segments of optical medium...
US20120069417 Photonic modulation of a photonic band gap  
An apparatus comprises a first photonic crystal structure having a first photonic band gap distribution and configured to support a first electromagnetic signal, wherein the first photonic band...
US20070211984 Optical coupler  
A optical coupler is formed on a substrate and includes a first and elongate optical waveguides. Variable coupling is provided between the first and second elongate optical waveguides. In an...
US20150077821 Two Dimensional Photonic Cluster State Generator from Sequential Photons with Multiple Entanglement Gates  
We describe an integrated waveguide device that creates entanglement between a sequence of periodically spaced (in time) photons in a single input and output mode. The device consists of a...
US20120183250 COMPOSITE SUBWAVELENGTH-STRUCTURED WAVEGUIDE IN OPTICAL SYSTEMS  
A waveguide cores consisting of a subwavelength grating permits transmission of light without diffraction in a discontinuous manner, wherein the energy is provided by field hopping between...
US20110292398 Integrated Optical Waveguide Interferometric Sensor  
Integrated optical waveguide interferometer for evanescent sensing of chemical and/or physical quantities, comprising a substrate carrying a waveguide layer structure provided with: a first...
US20120314725 OPTICAL DEVICE, MODULATOR MODULE, AND METHOD FOR MANUFACTURING THE OPTICAL DEVICE  
An optical device includes a ridge-like optical waveguide portion, a mesa protector portion that is arranged in parallel to the optical waveguide portion, a resin portion that covers upper parts...
US20120020608 Plasmonic Element With Waveguide Trapping  
Various plasmonic elements with waveguide trapping are provided. In one embodiment, a plasmonic element includes a waveguide layer including a first surface through which incident light enters the...
US20110103733 NANOMECHANICAL PHOTONIC DEVICES  
The present invention relates to devices which operate on gradient optical forces, in particular, nanoscale mechanical devices which are actuable by gradient optical forces. Such a device...
US20060210210 Adaptive pulse shape control  
A method, apparatus, and computer program product are provided for optimising the pulse shape of optical signals output from an optical transmitter. The optical transmitter includes an optical...
US20130272644 Multi-Mode Interference Manipulator  
A multi-mode interference includes a core portion suitable, at any point, for propagating an optical signal having multiple spatial modes. The core portion includes a shifting section for shifting...
US20110243492 SILICON BASED OPTICAL MODULATORS AND METHODS OF FABRICATING THE SAME  
A silicon based optical modulator apparatus can include a lateral slab on an optical waveguide, the lateral slab protruding beyond side walls of the optical waveguide so that a portion of the...
US20100209058 FIBER OPTIC TELECOMMUNICATIONS SYSTEM  
A communications cable includes two or more optical fibers embedded in a jacket which supports the fibers at a predetermined center-to-center distance. The jacket including at least one reference...
US20100238452 Dual Fiber Stretchers for Dispersion Compensation  
An optical system having at least two waveguides that are deformable to provide adjustments to dispersion and path length.
US20120237153 MONOLITHIC PHOTONIC INTEGRATED CIRCUIT  
An optical device includes a waveguide slab, first and second input port couplers, and first and second output port couplers located over a planar optical substrate. The waveguide slab has a plane...
US20100209038 HITLESS TUNING AND SWITCHING OF OPTICAL RESONATOR AMPLITUDE AND PHASE RESPONSES  
A hitless tunable filter may include a ring resonator, a Mach-Zehnder coupler, and first and second phase shifters. The Mach-Zehnder coupler may include a switching arm that is coupled to the ring...
US20110057091 All-optical integrated photonic clock  
An all-optical integrated photonic clock, systems employing the same, and methods of making and using the same. Illustrative examples are provided based on silicon semiconductor technology that...
US20070211982 Optical Functional Waveguide Optical Modulator Arrayed Waveguide Grating And Dispersion Compensation Circuit  
An optical functional waveguide having a small size, used with saved energy, controlling the phase of light at high speed, and adjusting the optical path length. The optical functional waveguide...
US20100046001 SYSTEM AND METHOD FOR ULTRAFAST OPTICAL SIGNAL DETECTING VIA A SYNCHRONOUSLY COUPLED ANAMORPHIC LIGHT PULSE ENCODED LATERALLY  
In one general embodiment, a method for ultrafast optical signal detecting is provided. In operation, a first optical input signal is propagated through a first wave guiding layer of a waveguide....
US20090202189 Optical control element  
There is provided an optical control element in which non-guided light is prevented from entering into an optical waveguide and which is excellent in optical properties, such as optical modulation...
US20060275615 Optical waveguide, optical transmitter and receiver module, and laminated structure  
An optical waveguide in which a groove is formed on the top surface of a substrate used as a lower clad and a core is formed in the groove, characterized in that the core is formed in such a way...
US20100119189 OPTICAL DELAY LINE INTERFEROMETER  
A demodulator is provided for a multilevel differential phase shift keyed signal, capable of eliminating polarization dependence due to birefringence and polarization coupling-induced light...
US20100080499 CHANNELIZED DISPERSION COMPENSATION MODULE  
There is disclosed an optical device for dispersion compensation of channels within a predetermined wavelength band, comprising: a waveguiding structure; and a grating structure formed in said...
US20050196091 Travelling-wave electroabsorption modulator  
According to the present invention, a travelling-wave electroabsorption modulator (TW-EAM) comprises: an optical waveguide with a plurality of adjacent regions electrically isolated from each...
US20100074570 OPTICAL CIRCUIT  
According to an aspect of an embodiment, an optical circuit comprising: at least two pairs of two input waveguides; a slab waveguide with one end coupled to two pairs or more of the two input...

Matches 1 - 50 out of 157 1 2 3 4 >