Optical harmonic generator
Abstract
A pair of uniaxial birefringent crystal elements are fixed together to form a serially arranged, integral assembly which, alternatively, provides either a linearly or elliptically polarized second-harmonic output wave or a linearly polarized third-harmonic output wave. The "extraordinary" or "e" directions of the crystal elements are oriented in the integral assembly to be in quadrature (90.degree.). For a second-harmonic generation in the Type-II-Type-II angle tuned case, the input fundamental wave has equal amplitude "o" and "e" components. For a third-harmonic generation, the input fundamental wave has "o" and "e" components whose amplitudes are in a ratio of 2:1 ("o":"e" reference first crystal). In the typical case of a linearly polarized input fundamental wave this can be accomplished by simply rotating the crystal assembly about the input beam direction by 10.degree.. For both second and third harmonic generation input precise phase-matching is achieved by tilting the crystal assembly about its two sensitive axes ("o").
- Inventors:
-
- Livermore, CA
- Pleasanton, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 865412
- Patent Number(s):
- 4510402
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- optical; harmonic; generator; pair; uniaxial; birefringent; crystal; elements; fixed; form; serially; arranged; integral; assembly; alternatively; provides; linearly; elliptically; polarized; second-harmonic; output; wave; third-harmonic; extraordinary; directions; oriented; quadrature; 90; degree; generation; type-ii-type-ii; angle; tuned; input; fundamental; equal; amplitude; components; amplitudes; ratio; reference; typical; accomplished; simply; rotating; beam; direction; 10; third; precise; phase-matching; achieved; tilting; sensitive; axes; input beam; beam direction; linearly polarized; third-harmonic generation; harmonic generation; crystal elements; serially arranged; output wave; optical harmonic; fundamental wave; third harmonic; /359/372/
Citation Formats
Summers, Mark A, Eimerl, David, and Boyd, Robert D. Optical harmonic generator. United States: N. p., 1985.
Web.
Summers, Mark A, Eimerl, David, & Boyd, Robert D. Optical harmonic generator. United States.
Summers, Mark A, Eimerl, David, and Boyd, Robert D. Tue .
"Optical harmonic generator". United States. https://www.osti.gov/servlets/purl/865412.
@article{osti_865412,
title = {Optical harmonic generator},
author = {Summers, Mark A and Eimerl, David and Boyd, Robert D},
abstractNote = {A pair of uniaxial birefringent crystal elements are fixed together to form a serially arranged, integral assembly which, alternatively, provides either a linearly or elliptically polarized second-harmonic output wave or a linearly polarized third-harmonic output wave. The "extraordinary" or "e" directions of the crystal elements are oriented in the integral assembly to be in quadrature (90.degree.). For a second-harmonic generation in the Type-II-Type-II angle tuned case, the input fundamental wave has equal amplitude "o" and "e" components. For a third-harmonic generation, the input fundamental wave has "o" and "e" components whose amplitudes are in a ratio of 2:1 ("o":"e" reference first crystal). In the typical case of a linearly polarized input fundamental wave this can be accomplished by simply rotating the crystal assembly about the input beam direction by 10.degree.. For both second and third harmonic generation input precise phase-matching is achieved by tilting the crystal assembly about its two sensitive axes ("o").},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1985},
month = {Tue Jan 01 00:00:00 EST 1985}
}