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Title: Silicon photonics thermal phase shifter with reduced temperature range

Abstract

Optical devices, phased array systems and methods of phase-shifting an input signal are provided. An optical device includes a microresonator and a waveguide for receiving an input optical signal. The waveguide includes a segment coupled to the microresonator with a coupling coefficient such that the waveguide is overcoupled to the microresonator. The microresonator received the input optical signal via the waveguide and phase-shifts the input optical signal to form an output optical signal. The output optical signal is coupled into the waveguide via the microresonator and transmitted by the waveguide. At an operating point of the optical device, the coupling coefficient is selected to reduce a change in an amplitude of the output optical signal and to increase a change in a phase of the output optical signal, relative to the input optical signal.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1110780
Patent Number(s):
8610994
Application Number:
13/368,141
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01Q - ANTENNAS, i.e. RADIO AERIALS
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Lentine, Anthony L, Kekatpure, Rohan D, DeRose, Christopher, Davids, Paul, and Watts, Michael R. Silicon photonics thermal phase shifter with reduced temperature range. United States: N. p., 2013. Web.
Lentine, Anthony L, Kekatpure, Rohan D, DeRose, Christopher, Davids, Paul, & Watts, Michael R. Silicon photonics thermal phase shifter with reduced temperature range. United States.
Lentine, Anthony L, Kekatpure, Rohan D, DeRose, Christopher, Davids, Paul, and Watts, Michael R. Tue . "Silicon photonics thermal phase shifter with reduced temperature range". United States. https://www.osti.gov/servlets/purl/1110780.
@article{osti_1110780,
title = {Silicon photonics thermal phase shifter with reduced temperature range},
author = {Lentine, Anthony L and Kekatpure, Rohan D and DeRose, Christopher and Davids, Paul and Watts, Michael R},
abstractNote = {Optical devices, phased array systems and methods of phase-shifting an input signal are provided. An optical device includes a microresonator and a waveguide for receiving an input optical signal. The waveguide includes a segment coupled to the microresonator with a coupling coefficient such that the waveguide is overcoupled to the microresonator. The microresonator received the input optical signal via the waveguide and phase-shifts the input optical signal to form an output optical signal. The output optical signal is coupled into the waveguide via the microresonator and transmitted by the waveguide. At an operating point of the optical device, the coupling coefficient is selected to reduce a change in an amplitude of the output optical signal and to increase a change in a phase of the output optical signal, relative to the input optical signal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {12}
}

Patent:

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