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Title: Reflex ring laser amplifier system

Abstract

The invention is a method and apparatus for providing a reflex ring laser system for amplifying an input laser pulse. The invention is particularly useful in laser fusion experiments where efficient production of high-energy and high power laser pulses is required. The invention comprises a large aperture laser amplifier in an unstable ring resonator which includes a combination spatial filter and beam expander having a magnification greater than unity. An input pulse is injected into the resonator, e.g., through an aperture in an input mirror. The injected pulse passes through the amplifier and spatial filter/expander components on each pass around the ring. The unstable resonator is designed to permit only a predetermined number of passes before the amplified pulse exits the resonator. On the first pass through the amplifier, the beam fills only a small central region of the gain medium. On each successive pass, the beam has been expanded to fill the next concentric non-overlapping region of the gain medium.

Inventors:
Issue Date:
OSTI Identifier:
7129175
Application Number:
ON: DE84010874
Assignee:
Dept. of Energy ERA-09-027614; EDB-84-088672
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 42 ENGINEERING; RING LASERS; SPECIFICATIONS; AMPLIFIERS; EFFICIENCY; LASER RADIATION; MIRRORS; PATENTS; DOCUMENT TYPES; ELECTROMAGNETIC RADIATION; ELECTRONIC EQUIPMENT; EQUIPMENT; LASERS; RADIATIONS; 700208* - Fusion Power Plant Technology- Inertial Confinement Technology; 420300 - Engineering- Lasers- (-1989)

Citation Formats

Summers, M.A. Reflex ring laser amplifier system. United States: N. p., 1983. Web.
Summers, M.A. Reflex ring laser amplifier system. United States.
Summers, M.A. Wed . "Reflex ring laser amplifier system". United States.
@article{osti_7129175,
title = {Reflex ring laser amplifier system},
author = {Summers, M.A.},
abstractNote = {The invention is a method and apparatus for providing a reflex ring laser system for amplifying an input laser pulse. The invention is particularly useful in laser fusion experiments where efficient production of high-energy and high power laser pulses is required. The invention comprises a large aperture laser amplifier in an unstable ring resonator which includes a combination spatial filter and beam expander having a magnification greater than unity. An input pulse is injected into the resonator, e.g., through an aperture in an input mirror. The injected pulse passes through the amplifier and spatial filter/expander components on each pass around the ring. The unstable resonator is designed to permit only a predetermined number of passes before the amplified pulse exits the resonator. On the first pass through the amplifier, the beam fills only a small central region of the gain medium. On each successive pass, the beam has been expanded to fill the next concentric non-overlapping region of the gain medium.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {8}
}