Published August 1, 1981
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Journal Article
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Narrow-band optical filter through phase conjugation by nondegenerate four-wave mixing in sodium vapor
- Creators
- Nilsen, Joseph
- Gluck, Natalie S.
- Yariv, Amnon
Chicago
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Abstract
An ultrahigh-Q tunable optical filter with a FWHM bandwidth of 41 MHz is demonstrated. The filtering is produced by nondegenerate phase conjugation through four-wave mixing in atomic-sodium vapor. The filter is observed to have a maximum quantum efficiency of 4 x 10^-3. However, degenerate phase-conjugation experiments in sodium suggest that a quantum efficiency of greater than unity can be attained on a cw basis.
Additional Information
© Copyright 1981 Optical Society of America. Received March 30, 1981. We thank William Bridges and Randy Bartman for the loan of and advice with one of the two dye lasers used in this experiment. We also thank Steven A. Cohen for his assistance in constructing the sodium cell. Joseph Nilsen thanks the Fannie and John Hertz Foundation for support of graduate studies. Joseph Nilsen is a Fannie and John Hertz Foundation Fellow. This research also was supported by the U.S. Army Research Office in Durham, North Carolina.Files
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