1
Jin Yao, Xuezhe Zheng, Ashok V Krishnamoorthy, John E Cunningham: Three-dimensional macro-chip including optical interconnects. Oracle America, Park Vaughan Fleming & Dowler, Steven E Stupp, September 18, 2012: US08267583 (17 worldwide citation)

A multi-chip module (MCM), which includes a three-dimensional (3D) stack of chips that are coupled using optical interconnects, is described. In this MCM, disposed on a first surface of a middle chip in the 3D stack, there are: a first optical coupler, an optical waveguide, which is coupled to the f ...


2
Xuezhe Zheng, Shifu Yuan, Roger Helkey, Marduke Yousepfor, Charles Matthew Corbalis, Chandrasekhar Pusarla: Method and apparatus to provide multi-channel bulk fiber optical power detection. Calient Networks, Blakely Sokoloff Taylor & Zafman, March 9, 2010: US07676125 (14 worldwide citation)

An apparatus is described to provide multi-channel bulk optical power detection. The apparatus has a plurality of optical splitters coupled to respective fiber-optic lines of a plurality of fiber-optic lines. An optimal time-division multiplexer has an input coupled to the plurality of optical split ...


3
Tony Walter, Dan Blumenthal, John E Bowers, Peter Hunt, Roger J Helkey, Xuezhe Zheng: Wavelength power equalization by attenuation in an optical switch. Calient Networks, Beyer Weaver & Thomas, November 28, 2006: US07142744 (14 worldwide citation)

A method for equalizing optical signal power in a group of optical signals transmitted through an optical switch in an optical transmission system. In one embodiment a group of optical signals is input into an optical switch having at least one movable mirror array with a plurality of reflectors for ...


4
Tony Walter, Dan Blumenthal, John E Bowers, Peter Hunt, Roger J Helkey, Xuezhe Zheng: Wavelength power equalization by attenuation in an optical switch. Calient Networks, Beyer Weaver & Thomas, February 24, 2004: US06697547 (13 worldwide citation)

A method for equalizing optical signal power in a group of optical signals transmitted through an optical switch in an optical transmission system. In one embodiment a group of optical signals is input into an optical switch having at least one movable mirror array with a plurality of reflectors for ...


5
Ashok V Krishnamoorthy, Xuezhe Zheng: Edge-coupled optical proximity communication. Oracle America, Park Vaughan Fleming & Dowler, Steven E Stupp, June 17, 2014: US08755655 (11 worldwide citation)

An optical module is described. This optical module includes at least two optical devices that communicate with each other using edge-to-edge optical coupling of an optical signal between optical components in the two optical devices. Note that the edge-to-edge optical coupling may occur without mod ...


6
Hiren D Thacker, Ashok V Krishnamoorthy, Robert David Hopkins II, Jon Lexau, Xuezhe Zheng, Ronald Ho, Ivan Shubin, John E Cunningham: Hybrid-integrated photonic chip package with an interposer. ORACLE INTERNATIONAL CORPORATION, Park Vaughan Fleming & Dowler, Steven E Stupp, March 29, 2016: US09297971 (9 worldwide citation)

A chip package includes an optical integrated circuit (such as a hybrid integrated circuit) and an integrated circuit that are proximate to each other in the chip package. The integrated circuit includes electrical circuits, such as memory or a processor, and the optical integrated circuit communica ...


7
Roger Jonathan Helkey, Shifu Yuan, Xuezhe Zheng: Wavelength routing optical switch. Calient Networks, Blakely Sokoloff Taylor & Zafman, August 7, 2007: US07254293 (8 worldwide citation)

An optical switch for routing arbitrary wavelengths between optical fibers in optical networks. The optical switch may include a highly wavelength dispersive element together with a spatially dispersive element to separate the wavelengths. Broadband switch inputs and outputs may be provided for addi ...


8
Xuezhe Zheng, Ashok V Krishnamoorthy, John E Cunningham: Optical imaging device for optical proximity communication. Sun Microsystems, Osha • Liang, August 11, 2009: US07574077 (8 worldwide citation)

An assembly comprising first and second electronic devices and an optical coupling device that optically couples an optical waveguide on the first electronic device to an optical waveguide on the second electronic device. In this way, optical proximity communication between the devices is possible. ...


9
John E Cunningham, Ashok V Krishnamoorthy, Ivan Shubin, Guoliang Li, Xuezhe Zheng: Optical device with large thermal impedance. Oracle America, Park Vaughan Fleming & Dowler, Steven E Stupp, December 7, 2010: US07848599 (7 worldwide citation)

Embodiments of an optical device, an array of optical devices, and a technique for fabricating the optical device or the array are described. This optical device is implemented on a substrate (such as silicon), and includes a thermally tunable optical waveguide that has good thermal isolation from i ...


10
Mehdi Asghari, Roshanak Shafiiha, Daniel C Lee, Dazeng Feng, Xuezhe Zheng, Ashok Krishnamoorthy, Hiren Thacker, John E Cunningham: Edge coupling of optical devices. Kotura, Gavrilovich Dodd & Lindsey, December 22, 2015: US09217836 (6 worldwide citation)

A system includes optical modules. Each module includes a different base and one or more module waveguides on the base. Module waveguides from different modules are aligned such that the aligned module waveguides exchange light signals. At least a portion of one of the aligned module waveguides is b ...