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Proceedings Paper

Experimental and theoretical investigations of single-frequency Raman fiber amplifiers operating at 1178 nm
Author(s): Iyad Dajani; Christopher Vergien; Benjamin Ward; Craig Robin; Shadi Naderi; Angel Flores; Jean-Claude Diels
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Paper Abstract

We present a detailed study of power scaling in polarization-maintaining Raman fiber amplifiers operating at 1178 nm since this wavelength can be frequency doubled into 589 nm for sodium guide star applications. We confirm experimentally that the optimized output signal at SBS threshold scales linearly with the pump power. We also present results from numerical and experimental studies investigating the scalability of Raman fiber amplifiers with seed power. Both co-pumped and counter pumped two-stage amplifiers utilizing acoustically tailored fiber for SBS suppression were constructed and studied. For the former configuration spectral broadening was observed, while the latter configuration provided 22 W of single-frequency output. Finally, we show results of a phase-modulated amplifier generating multiple spectral lines separated by 886 MHz, which corresponds to the spectral separation of the sodium D2a, and D2b lines after frequency doubling in a nonlinear cavity.

Paper Details

Date Published: 15 March 2013
PDF: 7 pages
Proc. SPIE 8604, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XII, 86040N (15 March 2013); doi: 10.1117/12.2006946
Show Author Affiliations
Iyad Dajani, Air Force Research Lab. (United States)
Christopher Vergien, Air Force Research Lab. (United States)
Benjamin Ward, U.S. Air Force Academy (United States)
Craig Robin, Air Force Research Lab. (United States)
Shadi Naderi, Air Force Research Lab. (United States)
Angel Flores, Air Force Research Lab. (United States)
Jean-Claude Diels, The Univ. of New Mexico (United States)


Published in SPIE Proceedings Vol. 8604:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XII
Konstantin L. Vodopyanov, Editor(s)

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