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Title: Remotely-interrogated high data rate free space laser communications link

Abstract

A system and method of remotely extracting information from a communications station by interrogation with a low power beam. Nonlinear phase conjugation of the low power beam results in a high power encoded return beam that automatically tracks the input beam and is corrected for atmospheric distortion. Intracavity nondegenerate four wave mixing is used in a broad area semiconductor laser in the communications station to produce the return beam.

Inventors:
 [1]
  1. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
909430
Patent Number(s):
7224905
Application Number:
09/827,454
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Ruggiero, Anthony J. Remotely-interrogated high data rate free space laser communications link. United States: N. p., 2007. Web.
Ruggiero, Anthony J. Remotely-interrogated high data rate free space laser communications link. United States.
Ruggiero, Anthony J. Tue . "Remotely-interrogated high data rate free space laser communications link". United States. https://www.osti.gov/servlets/purl/909430.
@article{osti_909430,
title = {Remotely-interrogated high data rate free space laser communications link},
author = {Ruggiero, Anthony J},
abstractNote = {A system and method of remotely extracting information from a communications station by interrogation with a low power beam. Nonlinear phase conjugation of the low power beam results in a high power encoded return beam that automatically tracks the input beam and is corrected for atmospheric distortion. Intracavity nondegenerate four wave mixing is used in a broad area semiconductor laser in the communications station to produce the return beam.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {5}
}

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Works referenced in this record:

Nonlinear mixing and phase conjugation in broad‐area diode lasers
journal, August 1988


Phase conjugate reflectivity of 165% using four-wave mixing in a broad-area laser diode
conference, January 1995


Spatial and frequency dependence of four‐wave mixing in broad‐area diode lasers
journal, November 1988


Highly efficient phase conjugation using spatially nondegenerate four‐wave mixing in a broad‐area laser diode
journal, February 1996


Semiconductor laser dynamics for feedback from a finite-penetration-depth phase-conjugate mirror
journal, May 1997


Quantum theory of noise in phase conjugation by four-wave mixing in a two-level system
journal, April 1997


Optical frequency conversion using nearly degenerate four-wave mixing in a distributed-feedback semiconductor laser: theory and experiment
journal, January 1993


Theory of grating-confined broad-area lasers
journal, January 1998


Phase-conjugation broad area twin-contact semiconductor laser
journal, July 1997