Experimental and theoretical investigations of single-frequency Raman fiber amplifiers operating at 1178 nm

Iyad Dajani; Christopher Vergien; Benjamin Ward; Craig Robin; Shadi Naderi; Angel Flores; Jean-Claude Diels

doi:10.1117/12.2006946

15 March 2013 Experimental and theoretical investigations of single-frequency Raman fiber amplifiers operating at 1178 nm

Iyad Dajani, Christopher Vergien, Benjamin Ward, Craig Robin, Shadi Naderi, Angel Flores, Jean-Claude Diels

Author Affiliations +

Proceedings Volume 8604, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XII; 86040N (2013) https://doi.org/10.1117/12.2006946
Event: SPIE LASE, 2013, San Francisco, California, United States

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 D_2b lines after frequency doubling in a nonlinear cavity.

Citation Download Citation

Iyad Dajani, Christopher Vergien, Benjamin Ward, Craig Robin, Shadi Naderi, Angel Flores, and Jean-Claude Diels "Experimental and theoretical investigations of single-frequency Raman fiber amplifiers operating at 1178 nm", Proc. SPIE 8604, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XII, 86040N (15 March 2013); https://doi.org/10.1117/12.2006946

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