Patent application number | Description | Published |
20090140362 | PHOTO DETECTOR - A photo detector comprising a grating (PC). The grating (PC) is arranged on top of a surface of an active semiconductor layer. The grating (PC) is patterned in uninterrupted first strips (ST | 06-04-2009 |
20090147818 | ENHANCED SURFACE-EMITTING PHOTONIC DEVICE - A surface-emitting photonic device including a structure disposed therein to enhance a performance thereof. The structure includes a two dimensionally periodic second order distributed feedback device (DFB) to emit diffraction limited outcoupled laser light having a predetermined wavelength along a propagation direction that is substantially normal to a plane of the DFB, and a first order distributed Bragg reflector (DBR) coplanar with, adjacent to and surrounding the DFB, a geometry of the DBR being selected such that a bandgap of the DBR is maximized and centered around the predetermined wavelength of the emitted light, a substrate, and either an optical gain layer, or a semi-conductor quantum well laser disposed within the substrate. | 06-11-2009 |
20100054662 | OPTICAL COUPLING DEVICE - An optical coupling device for coupling a light beam into a waveguide and a method of manufacturing the device. The device includes a grating portion having a plurality of essentially straight and essentially parallel scattering elements, wherein two or more of the scattering elements have different lengths. The method includes providing a grating layer on a substrate and forming a plurality of essentially straight and essentially parallel scattering elements from the grating layer, wherein two or more of the scattering elements have different lengths. | 03-04-2010 |
20100091370 | RADIAL BRAGG RING RESONATOR STRUCTURE WITH HIGH QUALITY FACTOR - A high quality factor optical resonator structure includes a substrate, a center disc formed on the substrate, and a plurality of concentric grating rings surrounding the center disc. The concentric rings are spaced apart from the center disc and from one another by regions of lower index of refraction material with respect thereto, and wherein spacing between the grating rings and the center disc is non-periodic such that a magnitude of a displacement distance of a given grating ring with respect to a λ/4 Bragg reflector geometry is largest for a first of the grating rings immediately adjacent the center disk and decreases in a radially outward direction. | 04-15-2010 |
20100122221 | METHOD AND APPARATUS FOR DESIGNING A DEVICE FOR ELECTRO-OPTICAL MODULATION OF LIGHT INCIDENT UPON THE DEVICE - A method and apparatus for designing a device to operate in a coupling mode, a detection mode, or a reflection mode for incident light. The incident light has a wavelength λ and is incident upon a semiconductor structure of the device at an angle of incidence (θ | 05-13-2010 |
20100315697 | OPTICAL WAVELENGTH SWITCH - Various embodiments of an optical switch device are provided. In one embodiment, the optical switch device includes a substrate. A photonic crystal, having a dielectric material, is applied on the substrate. An optical gain layer, having an optical gain material, is disposed above the photonic crystal. The photonic crystal is formed with a second-order distributed feedback structure to emit laser light perpendicular to a plane of the photonic crystal and a first-order distributed feedback structure adapted for reflecting light in the plane of the photonic crystal back into the second-order distributed feedback structure. The first-order distributed feedback structure at least one of fully surrounds the second-order distributed feedback structure and is arranged on two opposing edges of the second-order distributed feedback structure. | 12-16-2010 |
20110188808 | OPTICAL COUPLING METHOD - An optical coupling device for coupling a light beam into a waveguide and a method of manufacturing the device. The device includes a grating portion having a plurality of essentially straight and essentially parallel scattering elements, wherein two or more of the scattering elements have different lengths. The method includes providing a grating layer on a substrate and forming a plurality of essentially straight and essentially parallel scattering elements from the grating layer, wherein two or more of the scattering elements have different lengths. | 08-04-2011 |
20120206723 | DEVICE FOR DETECTING ELECTROMAGNETIC RADIATION COMPRISING A DIFFUSION JUNCTION AND A RESONANT GRATING IN A SINGLE LAYER - A photodiode device including a photosensitive diffusion junction within a single layer. The photodiode device further includes a resonant grating located within the single layer. The photosensitive diffusion junction is located within the resonant grating. | 08-16-2012 |
20120246608 | DEVICE FOR ELECTRO-OPTICAL MODULATION OF LIGHT INCIDENT UPON THE DEVICE - A method and apparatus for designing a device to operate in a coupling mode, a detection mode, or a reflection mode for incident light. The incident light has a wavelength λ and is incident upon a semiconductor structure of the device at an angle of incidence (θ | 09-27-2012 |
20130093035 | PHOTO DETECTOR AND INTEGRATED CIRCUIT - The photo detector ( | 04-18-2013 |