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Proceedings Paper

Reduction of SPM induced spectral broadening in a high peak power narrow linewidth IR fiber laser using phase modulation
Author(s): Michael J. Munroe; Mathew Y. Hamamoto; David A. Dutton
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Paper Abstract

We present a novel scheme of reducing the spectral broadening effects of self phase modulation (SPM) in high-peak-power, narrow-band fiber lasers by preconditioning the input pulses of a master oscillator seeded high-peak-power fiber amplifier with a commercially available fiber-coupled phase modulator. We demonstrate an output emission linewidth reduction in a 1064 nm nanosecond pulse-width, 10 kW peak power fiber laser system. Modeling and measurements are presented for this system using a directly modulated diode seed laser and the resulting practical limitations imposed on SPM mitigation are discussed.

Paper Details

Date Published: 19 February 2009
PDF: 6 pages
Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 71952N (19 February 2009); doi: 10.1117/12.809957
Show Author Affiliations
Michael J. Munroe, Deep Photonics Corp. (United States)
Mathew Y. Hamamoto, Deep Photonics Corp. (United States)
David A. Dutton, Deep Photonics Corp. (United States)

Published in SPIE Proceedings Vol. 7195:
Fiber Lasers VI: Technology, Systems, and Applications
Denis V. Gapontsev; Dahv A. Kliner; Jay W. Dawson; Kanishka Tankala, Editor(s)

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