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Title: Optically pumped alkali laser and amplifier using helium-3 buffer gas

Abstract

In one embodiment, a laser oscillator is provided comprising an optical cavity, the optical cavity including a gain medium including an alkali vapor and a buffer gas, the buffer gas including .sup.3He gas, wherein if .sup.4He gas is also present in the buffer gas, the ratio of the concentration of the .sup.3He gas to the .sup.4He gas is greater than 1.37.times.10.sup.-6. Additionally, an optical excitation source is provided. Furthermore, the laser oscillator is capable of outputting radiation at a first frequency. In another embodiment, an apparatus is provided comprising a gain medium including an alkali vapor and a buffer gas including .sup.3He gas, wherein if .sup.4He gas is also present in the buffer gas, the ratio of the concentration of the .sup.3He gas to the .sup.4He gas is greater than 1.37.times.10.sup.-6. Other embodiments are also disclosed.

Inventors:
 [1];  [2];  [1];  [3];  [1]
  1. Livermore, CA
  2. Castro Valley, CA
  3. San Ramon, CA
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1014554
Patent Number(s):
7,804,876
Application Number:
US Patent Application 12/055,408
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Beach, Raymond J, Page, Ralph, Soules, Thomas, Stappaerts, Eddy, and Wu, Sheldon Shao Quan. Optically pumped alkali laser and amplifier using helium-3 buffer gas. United States: N. p., 2010. Web.
Beach, Raymond J, Page, Ralph, Soules, Thomas, Stappaerts, Eddy, & Wu, Sheldon Shao Quan. Optically pumped alkali laser and amplifier using helium-3 buffer gas. United States.
Beach, Raymond J, Page, Ralph, Soules, Thomas, Stappaerts, Eddy, and Wu, Sheldon Shao Quan. 2010. "Optically pumped alkali laser and amplifier using helium-3 buffer gas". United States. https://www.osti.gov/servlets/purl/1014554.
@article{osti_1014554,
title = {Optically pumped alkali laser and amplifier using helium-3 buffer gas},
author = {Beach, Raymond J and Page, Ralph and Soules, Thomas and Stappaerts, Eddy and Wu, Sheldon Shao Quan},
abstractNote = {In one embodiment, a laser oscillator is provided comprising an optical cavity, the optical cavity including a gain medium including an alkali vapor and a buffer gas, the buffer gas including .sup.3He gas, wherein if .sup.4He gas is also present in the buffer gas, the ratio of the concentration of the .sup.3He gas to the .sup.4He gas is greater than 1.37.times.10.sup.-6. Additionally, an optical excitation source is provided. Furthermore, the laser oscillator is capable of outputting radiation at a first frequency. In another embodiment, an apparatus is provided comprising a gain medium including an alkali vapor and a buffer gas including .sup.3He gas, wherein if .sup.4He gas is also present in the buffer gas, the ratio of the concentration of the .sup.3He gas to the .sup.4He gas is greater than 1.37.times.10.sup.-6. Other embodiments are also disclosed.},
doi = {},
url = {https://www.osti.gov/biblio/1014554}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {9}
}

Works referenced in this record:

Cesium vapor laser pumped by a volume-Bragg-grating coupled quasi-continuous-wave laser-diode array
journal, April 2006


End-pumped continuous-wave alkali vapor lasers: experiment, model, and power scaling
journal, January 2004


Resonance transition 795-nm rubidium laser
journal, January 2003


Observation of collision induced processes in rubidium–ethane vapour
journal, June 1999