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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. 18 figs.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab., CA (USA)
OSTI Identifier:
6048455
Patent Number(s):
-US-A7116806
Application Number:
ON: DE89011784
Assignee:
Dept. of Energy LLNL; ERA-14-028901; EDB-89-078567
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; GLASS; CLADDING; ABSORPTION; ADHESION; EPOXIDES; FABRICATION; INVENTIONS; OPTICAL EQUIPMENT; OSCILLATIONS; PERFORMANCE; POLYMERS; THERMAL STRESSES; DEPOSITION; EQUIPMENT; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; STRESSES; SURFACE COATING; 360601* - Other Materials- Preparation & Manufacture; 360603 - Materials- Properties

Citation Formats

Powell, H.T., Wolfe, C.A., Campbell, J.H., Murray, J.E., Riley, M.O., Lyon, R.E., and Jessop, E.S. Composite polymer: Glass edge cladding for laser disks. United States: N. p., 1987. Web.
Powell, H.T., Wolfe, C.A., Campbell, J.H., Murray, J.E., Riley, M.O., Lyon, R.E., & Jessop, E.S. Composite polymer: Glass edge cladding for laser disks. United States.
Powell, H.T., Wolfe, C.A., Campbell, J.H., Murray, J.E., Riley, M.O., Lyon, R.E., and Jessop, E.S. Mon . "Composite polymer: Glass edge cladding for laser disks". United States.
@article{osti_6048455,
title = {Composite polymer: Glass edge cladding for laser disks},
author = {Powell, H.T. and Wolfe, C.A. and Campbell, J.H. and Murray, J.E. and Riley, M.O. and Lyon, R.E. and Jessop, E.S.},
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. 18 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {11}
}