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Title: Self-seeded single-frequency solid-state ring laser and system using same

Abstract

A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

Inventors:
; ;
Issue Date:
Research Org.:
Metal Improvement Company, LLC, Paramus, NJ (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176122
Patent Number(s):
7180918
Application Number:
10/696,989
Assignee:
Metal Improvement Company, LLC (Paramus, NJ)
Patent Classifications (CPCs):
C - CHEMISTRY C21 - METALLURGY OF IRON C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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:
47 OTHER INSTRUMENTATION

Citation Formats

Dane, C. Brent, Hackel, Lloyd, and Harris, Fritz B.. Self-seeded single-frequency solid-state ring laser and system using same. United States: N. p., 2007. Web.
Dane, C. Brent, Hackel, Lloyd, & Harris, Fritz B.. Self-seeded single-frequency solid-state ring laser and system using same. United States.
Dane, C. Brent, Hackel, Lloyd, and Harris, Fritz B.. Tue . "Self-seeded single-frequency solid-state ring laser and system using same". United States. https://www.osti.gov/servlets/purl/1176122.
@article{osti_1176122,
title = {Self-seeded single-frequency solid-state ring laser and system using same},
author = {Dane, C. Brent and Hackel, Lloyd and Harris, Fritz B.},
abstractNote = {A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {2}
}

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Works referenced in this record:

High power, single frequency operation of a Q-switched TEM00 Mode NdYAG laser
journal, December 1981


High-throughput laser peening of metals using a high-average-power Nd:glass laser system
conference, January 2000


Configuration Q-switching in a diode-pumped multirod variable-configuration resonator
journal, January 1998


Laser shock‐induced microstructural and mechanical property changes in 7075 aluminum
journal, September 1972


Design and operation of a 150 W near diffraction-limited laser amplifier with SBS wavefront correction
journal, January 1995


Single axial mode operation of aQ-switched Nd:YAG oscillator by injection seeding
journal, February 1984


Experimental and theoretical investigation of two-cell stimulated-Brillouin-scattering systems
journal, January 1991


Diode-pumped monolithic Nd:YLF 1.053-μm minilaser and its application to injection seeding
conference, April 1990


Single longitudinal mode selection of high power actively Q-switched lasers
journal, August 1972