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Title: Light-driven phase shifter

Abstract

A light-driven phase shifter is provided for modulating a transmission light beam. A gaseous medium such as argon is provided with electron energy states excited to populate a metastable state. A tunable dye laser is selected with a wavelength effective to deplete the metastable electron state and may be intensity modulated. The dye laser is directed through the gaseous medium to define a first optical path having an index of refraction determined by the gaseous medium having a depleted metastable electron state. A transmission laser beam is also directed through the gaseous medium to define a second optical path at least partially coincident with the first optical path. The intensity of the dye laser beam may then be varied to phase modulate the transmission laser beam.

Inventors:
 [1]
  1. (Los Alamos, NM)
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
867530
Patent Number(s):
4958921
Assignee:
United States of America as represented by United States (Washington, DC) LANL
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
light-driven; phase; shifter; provided; modulating; transmission; light; beam; gaseous; medium; argon; electron; energy; excited; populate; metastable; tunable; dye; laser; selected; wavelength; effective; deplete; intensity; modulated; directed; define; optical; path; index; refraction; determined; depleted; partially; coincident; varied; modulate; intensity modulated; electron energy; phase shift; dye laser; laser beam; light beam; optical path; gaseous medium; phase shifter; wavelength effective; tunable dye; transmission light; phase modulate; light-driven phase; /359/

Citation Formats

Early, James W. Light-driven phase shifter. United States: N. p., 1990. Web.
Early, James W. Light-driven phase shifter. United States.
Early, James W. Mon . "Light-driven phase shifter". United States. https://www.osti.gov/servlets/purl/867530.
@article{osti_867530,
title = {Light-driven phase shifter},
author = {Early, James W.},
abstractNote = {A light-driven phase shifter is provided for modulating a transmission light beam. A gaseous medium such as argon is provided with electron energy states excited to populate a metastable state. A tunable dye laser is selected with a wavelength effective to deplete the metastable electron state and may be intensity modulated. The dye laser is directed through the gaseous medium to define a first optical path having an index of refraction determined by the gaseous medium having a depleted metastable electron state. A transmission laser beam is also directed through the gaseous medium to define a second optical path at least partially coincident with the first optical path. The intensity of the dye laser beam may then be varied to phase modulate the transmission laser beam.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

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