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Title: Composite polymer-glass edge cladding for laser disks

Abstract

Large neodymium glass laser disks for disk amplifiers such as those used in the Nova laser require an edge cladding which absorbs at 1 micrometer. This cladding prevents edge reflections from causing parasitic oscillations which would otherwise deplete the gain. Nova now utilizes volume-absorbing monolithic-glass claddings which are fused at high temperature to the disks. These perform quite well but are expensive to produce. Absorbing glass strips are adhesively bonded to the edges of polygonal disks using a bonding agent whose index of refraction matches that of both the laser and absorbing glass. Optical finishing occurs after the strips are attached. Laser disks constructed with such claddings have shown identical gain performance to the previous Nova disks and have been tested for hundreds of shots without significant degradation.

Inventors:
 [1];  [2];  [3];  [1];  [1];  [4];  [1]
+ Show Inventor Affiliations
  1. Livermore, CA
  2. San Ramon, CA
  3. Palo Alto, CA
  4. Tracy, CA
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
OSTI Identifier:
867040
Patent Number(s):
4849036
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
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:
composite; polymer-glass; edge; cladding; laser; disks; neodymium; glass; disk; amplifiers; nova; require; absorbs; micrometer; prevents; reflections; causing; parasitic; oscillations; otherwise; deplete; utilizes; volume-absorbing; monolithic-glass; claddings; fused; temperature; perform; expensive; produce; absorbing; strips; adhesively; bonded; edges; polygonal; bonding; agent; index; refraction; matches; optical; finishing; occurs; attached; constructed; shown; identical; performance; previous; tested; hundreds; shots; significant; degradation; bonding agent; composite polymer; cladding prevents; neodymium glass; glass laser; laser disks; parasitic oscillation; edge cladding; /156/372/428/

Citation Formats

Powell, Howard T, Riley, Michael O, Wolfe, Charles R, Lyon, Richard E, Campbell, John H, Jessop, Edward S, and Murray, James E. Composite polymer-glass edge cladding for laser disks. United States: N. p., 1989. Web.
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Powell, Howard T, Riley, Michael O, Wolfe, Charles R, Lyon, Richard E, Campbell, John H, Jessop, Edward S, & Murray, James E. Composite polymer-glass edge cladding for laser disks. United States.
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Powell, Howard T, Riley, Michael O, Wolfe, Charles R, Lyon, Richard E, Campbell, John H, Jessop, Edward S, and Murray, James E. Sun . "Composite polymer-glass edge cladding for laser disks". United States. https://www.osti.gov/servlets/purl/867040.
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@article{osti_867040,
title = {Composite polymer-glass edge cladding for laser disks},
author = {Powell, Howard T and Riley, Michael O and Wolfe, Charles R and Lyon, Richard E and Campbell, John H and Jessop, Edward S and Murray, James E},
abstractNote = {Large neodymium glass laser disks for disk amplifiers such as those used in the Nova laser require an edge cladding which absorbs at 1 micrometer. This cladding prevents edge reflections from causing parasitic oscillations which would otherwise deplete the gain. Nova now utilizes volume-absorbing monolithic-glass claddings which are fused at high temperature to the disks. These perform quite well but are expensive to produce. Absorbing glass strips are adhesively bonded to the edges of polygonal disks using a bonding agent whose index of refraction matches that of both the laser and absorbing glass. Optical finishing occurs after the strips are attached. Laser disks constructed with such claddings have shown identical gain performance to the previous Nova disks and have been tested for hundreds of shots without significant degradation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}
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