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| Number | Title | Issue Date |
| 7295731 | Microstructuring optical wave guide devices with femtosecond optical pulses The present invention is directed to the creation of optical waveguiding devices from standard optical fibers by the creation of zones of permanently altered refractive index characteristics therein. A high intensity femtosecond laser beam is focused at a predetermi... | 11/13/2007 |
| 7295730 | Glass package for optical device A glass optical filter is described that optically connects two optical fibers and may filter a single or group of channels from a WDM signal that is being communicated between the optical fibers. The glass optical filter may be comprised of two pigtail tubes having... | 11/13/2007 |
| 7295781 | Polarization mode dispersion compensation Methods and systems for PMD compensation in an optical communication system are implemented by transmitting multiple optical signals through a common optical conduit to an optical compensator that adjustably rotates the polarization states of the multiple optical si... | 11/13/2007 |
| 7295732 | Wavelength selective device The present invention relates to a device, method, array and use of the device for optical coupling. The device comprises first and second optical waveguides (13, 23) extending longitudinally with cores (14, 24) adapted to guide optical radiation (1... | 11/13/2007 |
| 7295584 | System and method for generating multi-wavelength laser source using highly nonlinear fiber A number of embodiments provide multi-Wavelength Laser Source (MWLS) designs based on Super Continuum (SC) generation using Highly Non-Linear optical Fiber (HNLF). Advantageously, in some embodiments this technology only needs a single wavelength locking mechanism t... | 11/13/2007 |
| 7295724 | Polymer based distributive waveguide sensor for pressure and shear measurement According to embodiments of the present invention, a distributed pressure and shear stress sensor includes a flexible substrate, such as PDMS, with a waveguide formed thereon. Along the waveguide path are several Bragg gratings. Each Bragg grating has a characterist... | 11/13/2007 |
| 7295738 | System and method for performing dispersion compensation An exemplary embodiment of the present invention includes an optical circulator. The circulator may have, for example, a first port, a second port, and a third port. The first port may be configured to introduce light into the optical circulator. The system may also... | 11/13/2007 |
| 7292752 | Tuneable grating assisted directional optical coupler A tuneable grating assisted directional optical coupler to couple a transmission signal has a first waveguide including a first core and a first cladding, the first waveguide having a first effective refractive index. The coupler also has a second waveguide includin... | 11/06/2007 |
| 7292744 | Optical connection device and optoelectronic hybrid apparatus including the same An optical connection device includes: a substrate; an optical waveguide provided in the substrate; and plural optical connection ports provided in the optical waveguide and having at least one of a light output port and a light input port, the light output port out... | 11/06/2007 |
| 7292742 | Waveguides for performing enzymatic reactions The present invention is directed to a method and an apparatus for analysis of an analyte. The method involves providing a zero-mode waveguide which includes a cladding surrounding a core where the cladding is configured to preclude propagation of electromagnetic en... | 11/06/2007 |
| 7292753 | Dual core corrugated Bragg grating An apparatus comprising a first core layer having a first thickness and a first refractive index; a second core layer formed on the first core layer, the second core layer having a second thickness and a second refractive index; and a grating formed at the interface... | 11/06/2007 |
| 7292754 | Compensating interferometer including delay lines with reduced noise Methods and apparatus for reducing noise in optical apparatus comprising a delay line by utilizing a plurality of wavelength specific delay lines to delay an input waveform such as a pulse rather than a single delay line. In a preferred embodiment an apparatus is co... | 11/06/2007 |
| 7292336 | Method and instrument for detecting biomolecular interactions Method and apparatus for detecting biomolecular interactions. The use of labels is not required and the methods may be performed in a high-throughput manner. An instrument system for detecting a biochemical interaction on a biosensor. The system includes an array of... | 11/06/2007 |
| 7292755 | Optical resonator formed in a planar optical waveguide with a distributed optical structure An optical apparatus comprises a planar optical waveguide having at least two reflectors. The planar optical waveguide substantially confines in at least one transverse spatial dimension optical signals propagating therein, and the reflectors define an optical reson... | 11/06/2007 |
| 7292749 | System for electromagnetic field conversion A system is provided for conversion of a first electromagnetic field into a desired second electromagnetic field, for example for coupling modes between waveguides or into microstructured waveguides. The system includes a complex spatial electromagnetic field conver... | 11/06/2007 |
| 7289698 | High bitrate transport over multimode fibers A multimode fiber system includes a transmitter for transmitting an optical signal and a receiver that receives the optical signal. At least one mode filter is coupled between the receiver and the transmitter and passes only a specific set of fiber modes from the tr... | 10/30/2007 |
| 7289740 | WDM regenerated transmission system A multichannel wavelength-division multiplex fiber optic transmission system includes an optical transmitter and an optical receiver connected by an optical line including at least one optical fiber and at least one set of channel regenerators. Successive regenerato... | 10/30/2007 |
| 7288421 | Method for forming an optoelectronic device having an isolation layer Methods are disclosed for forming optoelectronic devices. In one example of such a method, a substrate is provided and a partially conductive bottom mirror formed thereon. An active region is then formed on the bottom mirror, and a top mirror formed on the active re... | 10/30/2007 |
| 7289739 | Polarization mode dispersion controller device and method for its operation A polarization mode dispersion (PMD) controller device for controlling the state of polarization of an optical light wave comprising a dispersion compensation unit (2; 25; 40) and an adaptation control unit (6; 28; 44), wherein the dispersion compensat... | 10/30/2007 |
| 7289700 | Blazed grating optical fiber polarizing coupler The blazed grating optical fiber polarizing coupler comprises a first optical fiber with a Bragg diffraction grating formed in its core at substantially the Brewster's angle with respect to an optical axis of the first optical fiber, a second optical fiber, also wit... | 10/30/2007 |
| 7289699 | Grating apodization technique for diffused optical waveguides An optical channel waveguide having a reflection grating and a related method for its fabrication. The grating is apodized to provide a desired reflection or transmission spectral characteristic, by varying the grating width along the length of the grating in the di... | 10/30/2007 |
| 7289688 | Passive method and apparatus for inducing mode conversion A waveguide for use in polarization mode converters and polarization modulators using extrinsic strain to prerotate the principal axes and control birefringence is disclosed herein. The invention relates to the orienting of principal propagation axes in an optical w... | 10/30/2007 |
| 7286733 | Light guide body A light guide body includes: at least a front end tapered portion including one end connectable to an optical fiber and the other end, the one end being thinner than the other end; a plurality of second taper portions, each including one end connectable to an optica... | 10/23/2007 |
| 7286582 | Optical external cavities having brewster angle wedges This invention consists of an optical external cavity having specialized Brewster angle wedges. The external cavity apparatus utilizes several types of very high index of refraction wedges made from semiconductor and special glass materials. The apparatus limits the... | 10/23/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7286732 | Distributed optical structures designed by computed interference between simulated optical signals An optical apparatus comprises a planar optical waveguide and at least one set of diffractive elements formed in or on the waveguide. The waveguide is arranged to confine propagating optical signals in at least one transverse dimension. The diffractive element set c... | 10/23/2007 |
| 7286763 | Optical add/drop multiplexer having a banded channel configuration An optical add/drop multiplexer (OADM) adapted to route optical signals having at least two different bit rates. The OADM has at least two sets of DWDM channels, e.g., with channels in a first set having a first bandwidth value suitable for the transmission of 10-Gb... | 10/23/2007 |
| 7286283 | Optical fiber coupling arrangement Apparatus for optically pumping a clad amplifier fiber includes one or more transmission fibers arranged and configured to insert pump-light from a pump light source such as a diode-laser into the cladding of the amplifier fiber. The pump light propagates through th... | 10/23/2007 |
| 7283694 | Transmitter photonic integrated circuits (TxPIC) and optical transport networks employing TxPICs A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input o... | 10/16/2007 |
| 7283695 | Optical interconnects in microelectronics based on azimuthally asymmetric long-period fiber grating couplers Systems and methods, including azimuthally asymmetric fiber gratings are disclosed. ... | 10/16/2007 |
| 7283704 | Optical signal-electric signal converter An optical signal to electrical signal converter of the present invention comprises an optical waveguide propagating a modulated optical signal therethrough; a pair of electrodes disposed at positions opposite to each other sandwiching the optical waveguide with in ... | 10/16/2007 |
| 7283571 | Method and system for performing wavelength locking of an optical transmission source A system for locking the operating wavelength of an optical transmission source, the system including: a pattern of nanostructures being optically coupled to the optical transmission source and adapted to perform notch filtering; at least one photodetector optically... | 10/16/2007 |
| 7283706 | Parabolic waveguide-type collimating lens with tunable external cavity laser diode provided with the same The present invention relates to a semiconductor based parabolic waveguide-type collimating lens and a monolithically integrated type tunable external cavity laser diode light source. The monolithically integrated type tunable external cavity laser diode light sourc... | 10/16/2007 |
| 7283707 | Evanescently coupling light between waveguides and whispering-gallery mode optical resonators An exemplary embodiment of the present invention described and shown in the specification and drawings is a system including an optical resonator and an optical element having a periodic structure for coupling of light into the optical resonator. ... | 10/16/2007 |
| 7283709 | Integrated microelectromechanical wavelength selective switch and method of making same A fully integrated microelectromechanical (MEMS) lxK wavelength selective switch (WSS) includes an array of N solid-immersion micromirrors (SIMs) and a K+1 dispersion waveguide arrays that are integrally fabricated together. In one embodiment, the WSS is fabricated ... | 10/16/2007 |
| 7283705 | Planar focusing grating coupler Provided is a planar focusing grating coupler, comprising: a light waveguide including a cladding layer and a core layer formed on a substrate and maintaining incident laser light in a single mode; and a focusing grating coupler formed to have a predetermined gratin... | 10/16/2007 |
| 7283717 | Integrated optic devices and photosensitive sol-gel process for producing integrated optic devices A photosensitive sol-gel film containing an organometallic photosensitizer is deposited on the oxide containing surface layer of a silicon substrate. A pattern of white or ultra violet light incident to the photosensitive sol-gel film results in the unbinding of the... | 10/16/2007 |
| 7283693 | Method to monitor structural damage occurrence and progression in monolithic composite structures using fibre Bragg grating sensors A method of monitoring structural damage in a composite structure manufactured by co-curing, co-bonding or secondary bonding of several sub-components (7, 8), using fibre optic Bragg grating sensors attached or embedded to or between (in the bonding line) sai... | 10/16/2007 |
| 7283700 | Optical router using stationary imaging A planar optical filter consisting of two stages performing stationary imaging between an input waveguide and a set of output waveguides is characterized by reduced crosstalk and minimal loss variation in each passband. The input stage is a small waveguide grating r... | 10/16/2007 |
| 7280206 | Method and apparatus to improve the dynamic range of optical devices using spatial apodization Devices and methods for processing multi-wavelength light beams and the single-wavelength components of such light beams are disclosed. In accordance with some embodiments, a spectral filter includes collimating and focusing optical elements, an apodizing filter, a ... | 10/09/2007 |
