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Title: Laser rods with undoped, flanged end-caps for end-pumped laser applications

Abstract

A method and apparatus for achieving improved performance in a solid state laser is provided. A flanged, at least partially undoped end-cap is attached to at least one end of a laserable medium. Preferably flanged, undoped end-caps are attached to both ends of the laserable medium. Due to the low scatter requirements for the interface between the end-caps and the laser rod, a non-adhesive method of bonding is utilized such as optical contacting combined with a subsequent heat treatment of the optically contacted composite. The non-bonded end surfaces of the flanged end-caps are coated with laser cavity coatings appropriate for the lasing wavelength of the laser rod. A cooling jacket, sealably coupled to the flanged end-caps, surrounds the entire length of the laserable medium. Radiation from a pump source is focussed by a lens duct and passed through at least one flanged end-cap into the laser rod.

Inventors:
 [1];  [2];  [3];  [4];  [5];  [6];  [7]
  1. Pleasanton, CA
  2. Livermore, CA
  3. Danville, CA
  4. Manteca, CA
  5. Tracy, CA
  6. Castro Valley, CA
  7. Sunol, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
872448
Patent Number(s):
5936984
Assignee:
Onxy Optics, Inc. (Dublin, CA); United States Enrichment Corporation (Bethesda, MD)
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
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
laser; rods; undoped; flanged; end-caps; end-pumped; applications; method; apparatus; achieving; improved; performance; solid; provided; partially; end-cap; attached; laserable; medium; preferably; due; scatter; requirements; interface; rod; non-adhesive; bonding; utilized; optical; contacting; combined; subsequent; heat; treatment; optically; contacted; composite; non-bonded; surfaces; coated; cavity; coatings; appropriate; lasing; wavelength; cooling; jacket; sealably; coupled; surrounds; entire; length; radiation; pump; source; focussed; lens; duct; passed; subsequent heat; laser rod; improved performance; entire length; laser cavity; heat treatment; pumped laser; cooling jacket; laser applications; achieving improved; lasing wavelength; laser rods; lens duct; pump source; /372/

Citation Formats

Meissner, Helmuth E, Beach, Raymond J, Bibeau, Camille, Sutton, Steven B, Mitchell, Scott, Bass, Isaac, and Honea, Eric. Laser rods with undoped, flanged end-caps for end-pumped laser applications. United States: N. p., 1999. Web.
Meissner, Helmuth E, Beach, Raymond J, Bibeau, Camille, Sutton, Steven B, Mitchell, Scott, Bass, Isaac, & Honea, Eric. Laser rods with undoped, flanged end-caps for end-pumped laser applications. United States.
Meissner, Helmuth E, Beach, Raymond J, Bibeau, Camille, Sutton, Steven B, Mitchell, Scott, Bass, Isaac, and Honea, Eric. Fri . "Laser rods with undoped, flanged end-caps for end-pumped laser applications". United States. https://www.osti.gov/servlets/purl/872448.
@article{osti_872448,
title = {Laser rods with undoped, flanged end-caps for end-pumped laser applications},
author = {Meissner, Helmuth E and Beach, Raymond J and Bibeau, Camille and Sutton, Steven B and Mitchell, Scott and Bass, Isaac and Honea, Eric},
abstractNote = {A method and apparatus for achieving improved performance in a solid state laser is provided. A flanged, at least partially undoped end-cap is attached to at least one end of a laserable medium. Preferably flanged, undoped end-caps are attached to both ends of the laserable medium. Due to the low scatter requirements for the interface between the end-caps and the laser rod, a non-adhesive method of bonding is utilized such as optical contacting combined with a subsequent heat treatment of the optically contacted composite. The non-bonded end surfaces of the flanged end-caps are coated with laser cavity coatings appropriate for the lasing wavelength of the laser rod. A cooling jacket, sealably coupled to the flanged end-caps, surrounds the entire length of the laserable medium. Radiation from a pump source is focussed by a lens duct and passed through at least one flanged end-cap into the laser rod.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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Works referenced in this record:

Silicon and silicon dioxide thermal bonding for silicon‐on‐insulator applications
journal, April 1988


69 W Average Power Yb:YAG Laser
conference, January 1996


Power scaling of diode-pumped 2 micron lasers
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Silicon-on-Insulator Wafer Bonding-Wafer Thinning Technological Evaluations
journal, August 1989


A small and stable continuous gas laser
journal, November 1962


Lattice Configuration and Electrical Properties at the Interface of Direct Bonded Silicon
conference, January 1986


69-W-average-power Yb:YAG laser
journal, January 1996