Assignee: Luxtera Inc.

Location: Carlsbad, CA
No. of patents: 28

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Number	Title	Issue Date
7453132	Waveguide photodetector with integrated electronics A germanium on silicon waveguide photodetector disposed on a silicon on insulator (SOI) substrate. The photodetector is incorporated into a section of a planar silicon waveguide on the substrate. The photodetector generates an electric current as an infrared optical...	11/18/2008
7450787	Distributed amplifier optical modulators High speed optical modulators can be made of k modulators connected in series disposed on one of a variety of semiconductor substrates. An electrical signal propagating in a microwave transmission line is tapped off of the transmission line at regular intervals and ...	11/11/2008
7412138	Optoelectronic alignment structures for the wafer level testing of optical and optoelectronic chips This application describes, among others, wafer designs, testing systems and techniques for wafer-level optical testing by coupling probe light to/from the top of a wafer. A wafer level test system uses optical and electronic probes to search for and align with an o...	08/12/2008
7397101	Germanium silicon heterostructure photodetectors A horizontal germanium silicon heterostructure photodetector comprising a horizontal germanium p-i-n diode disposed over a horizontal parasitic silicon p-i-n diode uses silicon contacts for electrically coupling to the germanium p-i-n through the p-type doped and n-...	07/08/2008
7378861	Optical alignment loops for the wafer-level testing of optical and optoelectronic chips This application describes, among others, wafer designs, testing systems and techniques for wafer-level optical testing by coupling probe light to/from the top of the wafer. A wafer level test system uses an optical probe to search for and align with an optical alig...	05/27/2008
7366380	PLC for connecting optical fibers to optical or optoelectronic devices Planar lightwave circuit (PLC) connects optical fibers to the top of an optical or optoelectronic device or optical or optoelectronic integrated circuit. Light propagating through optical fibers is directed to optical waveguides disposed on optical devices. The opti...	04/29/2008
7358527	Systems and methods for testing germanium devices Systems and methods are disclosed for a test device that is configured to allow assessment of the quality of germanium devices. In one embodiment, the test device is formed on the same substrate as the germanium devices, and includes a plurality of germanium compone...	04/15/2008
7340709	Method of generating a geometrical rule for germanium integration within CMOS In a computer-assisted product development system comprising a processor and a storage, a software-implemented method for asserting design rules related to the manufacturability of optoelectronic devices comprising germanium. Design rules may be established for devi...	03/04/2008
7298945	Polarization splitting grating couplers A polarization splitting grating coupler (PSGC) connects an optical signal from an optical element, such as a fiber, to an optoelectronic integrated circuit. The PSGC separates a received optical signal into two orthogonal polarizations and directs the two polarizat...	11/20/2007
7298939	Optoelectronic alignment structures for the wafer level testing of optical and optoelectronic chips This application describes, among others, wafer designs, testing systems and techniques for wafer-level optical testing by coupling probe light to/from the top of a wafer. A wafer level test system uses optical and electronic probes to search for and align with an o...	11/20/2007
7269326	Photonic input/output port The present I/O ports comprise (1) a layered structure comprising (a) an unpatterned superstrate having at least one layer, (b) an unpatterned substrate having at least one layer, and (c) at least one intermediate layer sandwiched between the unpatterned superstrate...	09/11/2007
7262852	Wafer-level testing of optical and optoelectronic chips This application describes, among others, wafer designs, testing systems and techniques for wafer-level optical testing by coupling probe light from top of the wafer. ...	08/28/2007
7262117	Germanium integrated CMOS wafer and method for manufacturing the same The present invention discloses an integration flow of germanium into a conventional CMOS process, with improvements in performing selective area growth, and implementing electrical contacts to the germanium, in a way that has minimal impact on the preexisting trans...	08/28/2007
7260289	Optical waveguide grating coupler with varying scatter cross sections Various configurations of elongate scattering elements in an optical waveguide grating coupler for coupling light between a planar waveguide and an optical element such as an optical fiber, where the light may have a Gaussian intensity distribution. The elongate sca...	08/21/2007
7259031	Integrated photonic-electronic circuits and systems Photonic interconnect reconfigurably couples integrated circuits such as microprocessor, memory or other logic components. Detector, modulator, broad-band coupler and waveguide elements provide transmit and receive capability on CMOS substrate. Computer-implemented ...	08/21/2007
7260293	Optical waveguide grating coupler with varying scatter cross sections Various configurations of elongate scattering elements in an optical waveguide grating coupler for coupling light between a planar waveguide and an optical element such as an optical fiber, where the light may have a Gaussian intensity distribution. The elongate sca...	08/21/2007
7251408	Doping profiles in PN diode optical modulators High speed optical modulators can be made of a lateral PN diode formed in a silicon optical rib waveguide, disposed on a SOI or other silicon based substrate. A PN junction is formed at the boundary of the P and N doped regions. The depletion region at the PN juncti...	07/31/2007
7251403	Light scattering structures formed in silicon waveguides In a standard CMOS process, a layer of metallic salicide can be deposited on those selected portions of an integrated circuit, where it is desired to have metallic contacts for electronic components, such as transistors. The deposition of a salicide into optical ele...	07/31/2007
7251386	Integrated photonic-electronic circuits and systems Photonic interconnect reconfigurably couples integrated circuits such as microprocessor, memory or other logic components. Detector, modulator, broad-band coupler and waveguide elements provide transmit and receive capability on CMOS substrate. Computer-implemented ...	07/31/2007
7245803	Optical waveguide grating coupler An optical waveguide grating coupler for coupling light between a planar waveguide and an optical element such as an optical fiber. The optical waveguide grating coupler includes a grating comprising a plurality of elongate scattering elements. The optical waveguide...	07/17/2007
7231105	Integrated dual waveguides An apparatus and method for splitting a received optical signal into its orthogonal polarizations and sending the two polarizations on separate dual integrated waveguides to other systems on chip for further signal processing. The present invention provides an appar...	06/12/2007
7224174	Optical alignment loops for the wafer-level testing of optical and optoelectronic chips This application describes, among others, wafer designs, testing systems and techniques for wafer-level optical testing by coupling probe light to/from the top of the wafer. A wafer level test system uses an optical probe to search for and align with an optical alig...	05/29/2007
7218826	CMOS process active waveguides on five layer substrates A standard CMOS process is used to fabricate optical, optoelectronic and electronic devices at the same time on a monolithic integrated circuit. FIG. 12 shows an active waveguide formed by a standard CMOS process on a five layer substrate. The waveguide is a ...	05/15/2007
7194166	Use of waveguide grating couplers in an optical mux/demux system A group of waveguide grating couplers is disposed on a semiconductor substrate. The grating couplers are all within a spot illuminated on the substrate by a light from an optical fiber. The light propagating in the fiber is wavelength division multiplexed (WDM) and ...	03/20/2007
7184626	Wafer-level testing of optical and optoelectronic chips This application describes, among others, wafer designs, testing systems and techniques for wafer-level optical testing by coupling probe light from top of the wafer. ...	02/27/2007
7184625	Optical waveguide grating coupler incorporating reflective optical elements and anti-reflection elements An optical wavelength grating coupler incorporating one or more distributed Bragg reflectors (DBR) or other reflective elements to enhance the coupling efficiency thereof. The grating coupler has a grating comprising a plurality of scattering elements adapted to sca...	02/27/2007
7183759	Optical probes with spacing sensors for the wafer level testing of optical and optoelectronic chips This application describes, among others, wafer designs, testing systems and techniques for wafer-level optical testing by coupling probe light to/from the top of the wafer. During the optical testing, the vertical spacing between an optical probe and the wafer is s...	02/27/2007
7136563	CMOS process polysilicon strip loaded waveguides with a two layer core A standard CMOS process is used to fabricate optical, optoelectronic and electronic devices at the same time on a monolithic integrated circuit. A polysilicon strip loaded waveguide is used as an example to illustrate the invention. The waveguide has a two layer cor...	11/14/2006

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Assignee: Luxtera Inc.