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Title: Low-phonon-frequency chalcogenide crystalline hosts for rare earth lasers operating beyond three microns

Abstract

The invention comprises a RE-doped MA.sub.2 X.sub.4 crystalline gain medium, where M includes a divalent ion such as Mg, Ca, Sr, Ba, Pb, Eu, or Yb; A is selected from trivalent ions including Al, Ga, and In; X is one of the chalcogenide ions S, Se, and Te; and RE represents the trivalent rare earth ions. The MA.sub.2 X.sub.4 gain medium can be employed in a laser oscillator or a laser amplifier. Possible pump sources include diode lasers, as well as other laser pump sources. The laser wavelengths generated are greater than 3 microns, as becomes possible because of the low phonon frequency of this host medium. The invention may be used to seed optical devices such as optical parametric oscillators and other lasers.

Inventors:
 [1];  [2];  [3];  [4];  [3];  [5]
+ Show Inventor Affiliations
  1. Castro Valley, CA
  2. San Ramon, CA
  3. Pleasanton, CA
  4. Livermore, CA
  5. Malden, MA
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
OSTI Identifier:
872943
Patent Number(s):
6047013
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
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DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
low-phonon-frequency; chalcogenide; crystalline; hosts; rare; earth; lasers; operating; microns; comprises; re-doped; medium; divalent; mg; sr; pb; eu; selected; trivalent; including; represents; employed; laser; oscillator; amplifier; pump; sources; diode; wavelengths; generated; phonon; frequency; host; seed; optical; devices; parametric; oscillators; laser oscillator; optical parametric; rare earth; laser amplifier; diode laser; optical device; pump sources; parametric oscillator; optical devices; laser pump; lasers operating; parametric oscillators; diode lasers; pump source; laser wavelength; /372/

Citation Formats

Payne, Stephen A, Page, Ralph H, Schaffers, Kathleen I, Nostrand, Michael C, Krupke, William F, and Schunemann, Peter G. Low-phonon-frequency chalcogenide crystalline hosts for rare earth lasers operating beyond three microns. United States: N. p., 2000. Web.
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Payne, Stephen A, Page, Ralph H, Schaffers, Kathleen I, Nostrand, Michael C, Krupke, William F, & Schunemann, Peter G. Low-phonon-frequency chalcogenide crystalline hosts for rare earth lasers operating beyond three microns. United States.
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Payne, Stephen A, Page, Ralph H, Schaffers, Kathleen I, Nostrand, Michael C, Krupke, William F, and Schunemann, Peter G. Sat . "Low-phonon-frequency chalcogenide crystalline hosts for rare earth lasers operating beyond three microns". United States. https://www.osti.gov/servlets/purl/872943.
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@article{osti_872943,
title = {Low-phonon-frequency chalcogenide crystalline hosts for rare earth lasers operating beyond three microns},
author = {Payne, Stephen A and Page, Ralph H and Schaffers, Kathleen I and Nostrand, Michael C and Krupke, William F and Schunemann, Peter G},
abstractNote = {The invention comprises a RE-doped MA.sub.2 X.sub.4 crystalline gain medium, where M includes a divalent ion such as Mg, Ca, Sr, Ba, Pb, Eu, or Yb; A is selected from trivalent ions including Al, Ga, and In; X is one of the chalcogenide ions S, Se, and Te; and RE represents the trivalent rare earth ions. The MA.sub.2 X.sub.4 gain medium can be employed in a laser oscillator or a laser amplifier. Possible pump sources include diode lasers, as well as other laser pump sources. The laser wavelengths generated are greater than 3 microns, as becomes possible because of the low phonon frequency of this host medium. The invention may be used to seed optical devices such as optical parametric oscillators and other lasers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2000},
month = {Sat Jan 01 00:00:00 EST 2000}
}
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