Reduction of SPM induced spectral broadening in a high peak power narrow linewidth IR fiber laser using phase modulation

Michael J. Munroe; Mathew Y. Hamamoto; David A. Dutton

doi:10.1117/12.809957

19 February 2009 Reduction of SPM induced spectral broadening in a high peak power narrow linewidth IR fiber laser using phase modulation

Michael J. Munroe, Mathew Y. Hamamoto, David A. Dutton

Author Affiliations +

Proceedings Volume 7195, Fiber Lasers VI: Technology, Systems, and Applications; 71952N (2009) https://doi.org/10.1117/12.809957
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

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.

Citation Download Citation

Michael J. Munroe, Mathew Y. Hamamoto, and David A. Dutton "Reduction of SPM induced spectral broadening in a high peak power narrow linewidth IR fiber laser using phase modulation", Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 71952N (19 February 2009); https://doi.org/10.1117/12.809957

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