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Title: Device for frequency modulation of a laser output spectrum

Abstract

A device is provided for fast frequency modulating the output spectrum of multimode lasers and single frequency lasers that are not actively stabilized. A piezoelectric transducer attached to a laser cavity mirror is driven in an unconventional manner to excite resonance vibration of the transducer to rapidly, cyclicly change the laser cavity length. The result is a cyclic sweeping of the output wavelength sufficient to fill the gaps in the laser output frequency spectrum. When such a laser is used to excite atoms or molecules, complete absorption line coverage is made possible.

Inventors:
 [1];  [2]
  1. Oak Ridge, TN
  2. (Oak Ridge, TN)
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
865953
Patent Number(s):
4606031
Assignee:
United States of America as represented by United States (Washington, DC)
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-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
device; frequency; modulation; laser; output; spectrum; provided; fast; modulating; multimode; lasers; single; actively; stabilized; piezoelectric; transducer; attached; cavity; mirror; driven; unconventional; manner; excite; resonance; vibration; rapidly; cyclicly; change; length; result; cyclic; sweeping; wavelength; sufficient; fill; gaps; atoms; molecules; complete; absorption; line; coverage; output wavelength; output frequency; output spectrum; laser output; laser cavity; piezoelectric transducer; absorption line; frequency spectrum; frequency modulation; cavity length; single frequency; conventional manner; frequency laser; output wave; cavity mirror; frequency lasers; frequency modulating; mode laser; /372/

Citation Formats

Beene, James R, and Bemis, Jr., Curtis E. Device for frequency modulation of a laser output spectrum. United States: N. p., 1986. Web.
Beene, James R, & Bemis, Jr., Curtis E. Device for frequency modulation of a laser output spectrum. United States.
Beene, James R, and Bemis, Jr., Curtis E. Wed . "Device for frequency modulation of a laser output spectrum". United States. https://www.osti.gov/servlets/purl/865953.
@article{osti_865953,
title = {Device for frequency modulation of a laser output spectrum},
author = {Beene, James R and Bemis, Jr., Curtis E.},
abstractNote = {A device is provided for fast frequency modulating the output spectrum of multimode lasers and single frequency lasers that are not actively stabilized. A piezoelectric transducer attached to a laser cavity mirror is driven in an unconventional manner to excite resonance vibration of the transducer to rapidly, cyclicly change the laser cavity length. The result is a cyclic sweeping of the output wavelength sufficient to fill the gaps in the laser output frequency spectrum. When such a laser is used to excite atoms or molecules, complete absorption line coverage is made possible.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}

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