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Proceedings Paper

High energy, high average and peak power phosphate-glass fiber amplifiers for 1micron band
Author(s): M. Akbulut; A. Miller; K. Wiersma; J. Zong; D. Rhonehouse; D. Nguyen; A. Chavez-Pirson
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Paper Abstract

Heavy doping of common silica gain fibers is not practical; therefore long fibers are required for efficient amplification (usually 5-10m). This is undesirable due to nonlinearities that grow with fiber length. In contrast, NP Photonics phosphate-glass based fibers can be heavily doped without any side-effects, and hence can provide very high gain in short lengths (less than 0.5m). This enables an ideal pulsed fiber amplifier for a MOPA system that maximizes the energy extraction and minimizes the nonlinearities. We demonstrate 1W average power, 200μJ energy, and >10kW peak power from a SBS-limited all-fiber MOPA system at 1550nm, and 32W average power, 90μJ energy, and 45kW peak power from a SRS and SPM limited all-fiber MOPA system at 1064 nm. These results were limited by the seed and pump sources.

Paper Details

Date Published: 12 March 2014
PDF: 7 pages
Proc. SPIE 8961, Fiber Lasers XI: Technology, Systems, and Applications, 89611X (12 March 2014); doi: 10.1117/12.2040721
Show Author Affiliations
M. Akbulut, NP Photonics, Inc. (United States)
A. Miller, NP Photonics, Inc. (United States)
K. Wiersma, NP Photonics, Inc. (United States)
J. Zong, NP Photonics, Inc. (United States)
D. Rhonehouse, NP Photonics, Inc. (United States)
D. Nguyen, NP Photonics, Inc. (United States)
A. Chavez-Pirson, NP Photonics, Inc. (United States)


Published in SPIE Proceedings Vol. 8961:
Fiber Lasers XI: Technology, Systems, and Applications
Siddharth Ramachandran, Editor(s)

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