Patent application number | Description | Published |
20090022445 | NANOPHOTONIC DEVICES IN SILICON - Systems and methods for manipulating light with high index contrast waveguides clad with substances having that exhibit large nonlinear electro-optic constants χ | 01-22-2009 |
20090052830 | SILICON WAVEGUIDE PHOTODETECTOR AND RELATED METHOD - A photodetector device, comprises an optical input, a nanoscale silicon waveguide and an electrical output. The waveguide is a high-contrast waveguide, with a refractive index contrast with the outside environment of more that 10%. The optical mode distribution across the waveguide has a peak intensity in correspondence of surface states of the nanoscale silicon waveguide. A related method is also disclosed. | 02-26-2009 |
20090123108 | SINGLE PHOTON ABSORPTION ALL-OPTICAL MODULATOR IN SILICON - A single-photon absorption all-optical modulator, systems employing the same, and methods of making and using the same. An illustrative example is provided based on silicon semiconductor technology that employs rectangular waveguides. In some embodiments, it is observed that the waveguides operate with an absorption density of less than 10 | 05-14-2009 |
20090297094 | All-optical modulation and sdwitching with patterned optically absorbing polymers - All-optical processing devices that include patterned optically active polymers. The devices that are constructed according to principles of the invention include at least one optical input port and at least one optical output port, respectively configured to accept optical input signals and provide optical output signals. The devices include optically active material such as organic polymers that interact with illumination at a first wavelength to change at least one optical property in a non-linear manner. The optically active polymer can be placed adjacent one or more waveguides that allow the input illumination to propagate. As the optical property of the optically active material is changed by the incident illumination, the propagating illumination undergoes a modulation or change in phase, thereby providing an optical output signal having a desired relation to the optical input signal, such as the result of a logical or a computational operation. | 12-03-2009 |
20100002994 | Integrated Optical Modulator - Systems and methods for manipulating light with high index contrast waveguides clad with crystalline substances having that exhibit large nonlinear electro-optic constants χ | 01-07-2010 |
20100098373 | Optical XOR logic gate - An all-optical XOR logic gate. In one embodiment, a single photon absorption medium is used to provide enhanced optical response of a gate to an applied optical signal. The apparatus described uses at least two gate inputs and an optical modulation structure such as a Mach-Zehnder interferometer to perform logical XOR operations on an optical input signal using the gate inputs. The result of the XOR operation is provided as information in an optical output signal representative of the result of the XOR operation impressed on the optical input signal. | 04-22-2010 |
20100187402 | METHOD OF PERFORMING HYPERSPECTRAL IMAGING WITH PHOTONIC INTEGRATED CIRCUITS - According to the invention, an integrated hyperspectral imager includes a planar photonic substrate. A plurality of imaging pixel photonic circuits is disposed in a M×N array on the planar photonic substrate. Each imaging pixel photonic circuit includes an input coupler configured to receive a broadband input electromagnetic radiation. A waveguide is optically coupled to the input coupler. A plurality of wavelength filters is optically coupled to the waveguide. Each wavelength filter has a wavelength filter input and a wavelength filter output. Each detector has a detector input optically coupled respectively to each of the wavelength filter outputs. Each detector has a respective detector output. The integrated hyperspectral imager is configured to provide electrical signals that are representative of a hyperspectral image of the received broadband input electromagnetic radiation. A method for recording an image based on a received electromagnetic radiation is also described. | 07-29-2010 |
20100187442 | BEAM GENERATION AND STEERING WITH INTEGRATED OPTICAL CIRCUITS FOR LIGHT DETECTION AND RANGING - An integrated photonic beam steering device includes a planar photonic substrate. An input waveguide is configured to accept an electromagnetic energy from a source of electromagnetic energy radiation. A first splitter is configured to split the electromagnetic radiation into one or more paths. One or more phased array rows are optically coupled to each of the one or more paths. Each phased array row includes a row splitter configured to split the each of the one or more paths into two or more row paths. Two or more phase modulators are each optically coupled respectively to each of the two or more row paths. Two or more output couplers are optically coupled respectively to each phase modulator output of the two or more phase modulators. The two or more output couplers are configured to radiate a steered photonic beam away from the integrated photonic beam steering device. | 07-29-2010 |
20110057091 | 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 employs rectangular waveguides fabricated on SOI wafers. In some embodiments, the clock can provide an optical timing signal. In some embodiments, the clock can provide a jitter-free electrical signal derived from the clock by use of a high speed photodetector. | 03-10-2011 |
20110069969 | WAVEGUIDES AND DEVICES FOR ENHANCED THIRD ORDER NONLINEARITIES IN POLYMER-SILICON SYSTEMS - Systems and methods for manipulating light with high index contrast waveguides clad with substances having that exhibit large nonlinear electro-optic constants such as χ | 03-24-2011 |
20110164843 | ENHANCED SILICON ALL-OPTICAL MODULATOR - A single-photon absorption all-optical signal-processing device, systems employing the same, and methods of making and using the same. Illustrative examples are provided based on silicon semiconductor technology that employs rectangular waveguides fabricated on SOI wafers. In some embodiments, it is observed that the waveguides have surface state density, σ, of not less than 1.5×10 | 07-07-2011 |