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Title: Integrated resonant micro-optical gyroscope and method of fabrication

Abstract

An integrated optic gyroscope is disclosed which is based on a photonic integrated circuit (PIC) having a bidirectional laser source, a pair of optical waveguide phase modulators and a pair of waveguide photodetectors. The PIC can be connected to a passive ring resonator formed either as a coil of optical fiber or as a coiled optical waveguide. The lasing output from each end of the bidirectional laser source is phase modulated and directed around the passive ring resonator in two counterpropagating directions, with a portion of the lasing output then being detected to determine a rotation rate for the integrated optical gyroscope. The coiled optical waveguide can be formed on a silicon, glass or quartz substrate with a silicon nitride core and a silica cladding, while the PIC includes a plurality of III V compound semiconductor layers including one or more quantum well layers which are disordered in the phase modulators and to form passive optical waveguides.

Inventors:
 [1];  [2];  [1];  [1]
  1. Albuquerque, NM
  2. Sandia Park, NM
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
908250
Patent Number(s):
7,106,448
Application Number:
10/780,799
Assignee:
Sandia Corporation (Albuquerque, NM)
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Vawter, G Allen, Zubrzycki, Walter J, Guo, Junpeng, and Sullivan, Charles T. Integrated resonant micro-optical gyroscope and method of fabrication. United States: N. p., 2006. Web.
Vawter, G Allen, Zubrzycki, Walter J, Guo, Junpeng, & Sullivan, Charles T. Integrated resonant micro-optical gyroscope and method of fabrication. United States.
Vawter, G Allen, Zubrzycki, Walter J, Guo, Junpeng, and Sullivan, Charles T. 2006. "Integrated resonant micro-optical gyroscope and method of fabrication". United States. https://www.osti.gov/servlets/purl/908250.
@article{osti_908250,
title = {Integrated resonant micro-optical gyroscope and method of fabrication},
author = {Vawter, G Allen and Zubrzycki, Walter J and Guo, Junpeng and Sullivan, Charles T},
abstractNote = {An integrated optic gyroscope is disclosed which is based on a photonic integrated circuit (PIC) having a bidirectional laser source, a pair of optical waveguide phase modulators and a pair of waveguide photodetectors. The PIC can be connected to a passive ring resonator formed either as a coil of optical fiber or as a coiled optical waveguide. The lasing output from each end of the bidirectional laser source is phase modulated and directed around the passive ring resonator in two counterpropagating directions, with a portion of the lasing output then being detected to determine a rotation rate for the integrated optical gyroscope. The coiled optical waveguide can be formed on a silicon, glass or quartz substrate with a silicon nitride core and a silica cladding, while the PIC includes a plurality of III V compound semiconductor layers including one or more quantum well layers which are disordered in the phase modulators and to form passive optical waveguides.},
doi = {},
url = {https://www.osti.gov/biblio/908250}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {9}
}

Works referenced in this record:

Single polarization optical waveguide on silicon
journal, March 1991


Low loss Si_3N_4–SiO_2 optical waveguides on Si
journal, January 1987


Monolithically integrated resonator microoptic gyro on silica planar lightwave circuit
journal, January 2000


Silicon nitride films on silicon for optical waveguides
journal, January 1977