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Proceedings Paper

Frequency stabilization of semiconductor lasers for onboard interferometers using both Rb-saturated absorption profiles and double-optical feedback systems
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Paper Abstract

The precise interferometric systems employed in today's artificial satellites require semiconductor lasers of the highest caliber. To this end, efforts to stabilize their oscillation frequencies and narrow spectrum line-widths continue relentlessly. While a number of different approaches have been tested, none have provided overall, long-term stability. Most recently, we employed a Doppler-free absorption line of Rb atoms, with a precision temperature controller and an improved laser mount. In this instance, relative optical frequency stability rated 9.07×10-13≤σ(2,τ)≤7.54×10-10, in averaging time for 0.01s≤τ23s. By introducing an optical feedback, which narrows the laser's linewidth, we obtained improved frequency stability.

Paper Details

Date Published: 12 July 2008
PDF: 10 pages
Proc. SPIE 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter, 701047 (12 July 2008); doi: 10.1117/12.788681
Show Author Affiliations
K. Nakano, Niigata Univ. (Japan)
S. Maehara, Niigata Univ. (Japan)
M. Yanagisawa, Niigata Univ. (Japan)
A. Sato, Niigata Univ. (Japan)
K. Doi, Niigata Univ. (Japan)
T. Sato, Niigata Univ. (Japan)
M. Ohkawa, Niigata Univ. (Japan)
T. Maruyama, Niigata Univ. (Japan)
S. Kawamura, National Astronomical Observatory (Japan)

Published in SPIE Proceedings Vol. 7010:
Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter
Jacobus M. Oschmann Jr.; Mattheus W. M. de Graauw; Howard A. MacEwen, Editor(s)

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