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Title: Optical XOR gate

Patent ·
OSTI ID:1107893

An optical XOR gate is formed as a photonic integrated circuit (PIC) from two sets of optical waveguide devices on a substrate, with each set of the optical waveguide devices including an electroabsorption modulator electrically connected in series with a waveguide photodetector. The optical XOR gate utilizes two digital optical inputs to generate an XOR function digital optical output. The optical XOR gate can be formed from III-V compound semiconductor layers which are epitaxially deposited on a III-V compound semiconductor substrate, and operates at a wavelength in the range of 0.8-2.0 .mu.m.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
8,582,931
Application Number:
12/973,470
OSTI ID:
1107893
Country of Publication:
United States
Language:
English

References (21)

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40 Gbit∕s XOR and AND gates using polarisation switching within 1 m-long bismuth oxide-based nonlinear fibre journal January 2005
Optical data latch patent August 2010
Ultrahigh-speed reconfigurable logic gates based on four-wave mixing in a semiconductor optical amplifier journal June 2006
Design and Demonstration of Novel QW Intermixing Scheme for the Integration of UTC-Type Photodiodes With QW-Based Components journal February 2006
Simple realization of all-optical high-speed (40, 80 and 160 Gb s −1 ) XOR and OR logic gates using LiNbO 3 waveguides journal August 2007
All optical XOR logic gates: technologies and experiment demonstrations journal May 2005
All-Optical Logic xor Gate at 80 Gb/s Using SOA-MZI-DI journal August 2006
All-optical multiple logic gates with XOR, NOR, OR, and NAND functions using parallel SOA-MZI structures: theory and experiment journal September 2006
Ultrafast nonlinear interferometer (UNI)-based digital optical circuits and their use in packet switching journal November 2003
Experimental demonstration on 40Gbit/s all-optical multicasting logic XOR gate for NRZ-DPSK signals using four-wave mixing in highly nonlinear fiber journal July 2009
Study of all-optical XOR using Mach-Zehnder Interferometer and differential scheme journal June 2004
Nanophotonic interferometer realizing all-optical exclusive or gate on a silicon chip journal June 2009
Demonstration of directed XOR/XNOR logic gates using two cascaded microring resonators journal January 2010
40-Gb/s Widely Tunable Transceivers journal January 2007
All optical logic gates based on an asymmetric nonlinear directional coupler journal June 2006
All-optical logic gates based on nonlinear dielectric films journal January 2008
Ultrafast all-optical three-input Boolean XOR operation for differential phase-shift keying signals using periodically poled lithium niobate journal January 2008
40 Gbit∕s all-optical XOR gate based on hybrid-integrated Mach-Zehnder interferometer journal January 2003
All-optical 40 Gbit∕s XOR gate with dual ultrafast nonlinear interferometer journal January 2005
All-Optical Processing Based on a Logic xor Gate and a Flip-Flop Memory for Packet-Switched Networks journal September 2007

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