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Title: Integrated optical transceiver with electronically controlled optical beamsteering

A beam-steering optical transceiver is provided. The transceiver includes one or more modules, each comprising an antenna chip and a control chip bonded to the antenna chip. Each antenna chip has a feeder waveguide, a plurality of row waveguides that tap off from the feeder waveguide, and a plurality of metallic nanoantenna elements arranged in a two-dimensional array of rows and columns such that each row overlies one of the row waveguides. Each antenna chip also includes a plurality of independently addressable thermo-optical phase shifters, each configured to produce a thermo-optical phase shift in a respective row. Each antenna chip also has, for each row, a row-wise heating circuit configured to produce a respective thermo-optic phase shift at each nanoantenna element along its row. The control chip includes controllable current sources for the independently addressable thermo-optical phase shifters and the row-wise heating circuits.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1375946
Assignee:
National Technology & Engineering Solutions of Sandia, LLC SNL-A
Patent Number(s):
9,740,079
Application Number:
15/337,179
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2016 Oct 28
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING

Other works cited in this record:

Silicon photonics thermal phase shifter with reduced temperature range
patent, December 2013

Method and apparatus of wide-angle optical beamsteering from a nanoantenna phased array
patent, August 2015

Forming Microstructures and Antennas for Transponders
patent-application, March 2012

Travelling Wave Distributed Active Antenna Radiator Structures, High Frequency Power Generation and Quasi-Optical
patent-application, August 2012

Optical Phased Arrays
patent-application, October 2113

Electronically controlled optical beam-steering by an active phased array of metallic nanoantennas
journal, January 2013
  • DeRose, C. T.; Kekatpure, R. D.; Trotter, D. C.
  • Optics Express, Vol. 21, Issue 4, p. 5198-5208
  • DOI: 10.1364/OE.21.005198

Ultra compact 45 GHz CMOS compatible Germanium waveguide photodiode with low dark current
journal, January 2011
  • DeRose, Christopher T.; Trotter, Douglas C.; Zortman, William A.
  • Optics Express, Vol. 19, Issue 25, p. 24897-24904
  • DOI: 10.1364/OE.19.024897

Two-dimensional free-space beam steering with an optical phased array on silicon-on-insulator
journal, January 2011
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  • DOI: 10.1364/OE.19.021595

High performance waveguide-coupled Ge-on-Si linear mode avalanche photodiodes
journal, January 2016
  • Martinez, Nicholas J. D.; Derose, Christopher T.; Brock, Reinhard W.
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  • DOI: 10.1364/OE.24.019072

Fully integrated hybrid silicon free-space beam steering source with 32-channel phased array
conference, March 2014
  • Hulme, J. C.; Doylend, J. K.; Heck, M. J. R.
  • Smart Photonic and Optoelectronic Integrated Circuits XVI, Vol. 8989, Article No: 898907
  • DOI: 10.1117/12.2044820

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