7 June 2004 Polarization-maintaining master oscillator fiber amplifier (MOFA) for high-repetition-rate applications
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Proceedings Volume 5335, Fiber Lasers: Technology, Systems, and Applications; (2004); doi: 10.1117/12.537597
Event: Lasers and Applications in Science and Engineering, 2004, San Jose, Ca, United States
Abstract
Various military lidar applications such as underwater mine detection, obstacle avoidance, IRCM, and 3 D lidar incorporate high repetition rate solid-state lasers to accomplish the mission. The recent advances and demonstrations in high power Ytterbium (Yb) fiber lasers/amplifiers make the fiber media a viable alternative to bulk lasers for these applications. The fiber laser geometry maximizes the pump absorption and mode matching for overall high efficiency, (factor-of-two over bulk laser sources) while minimizing thermal effects. In this presentation we will show experimental and modeling results on various master oscillator Yb doped polarization maintaining (PM) fiber amplifiers being developed for high repetition rate applications. We have demonstrated >20 W of average output power with M2 <1.3, repetition rates up to 75 kHz and pulse widths ranging from <1 ns to 250 ns. Results of a pulsed PM MOFA efficiently pumping a Periodically Poled Lithium Niobate (PPLN) optical parametric oscillator (OPO) and KTP doubler will also be presented.
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Carlos H. Avila, Ralph L. Burnham, Youming Chen, William Torruellas, Horacio R. Verdun, Richard A. Utano, "Polarization-maintaining master oscillator fiber amplifier (MOFA) for high-repetition-rate applications", Proc. SPIE 5335, Fiber Lasers: Technology, Systems, and Applications, (7 June 2004); doi: 10.1117/12.537597; https://doi.org/10.1117/12.537597
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KEYWORDS
Fiber lasers

Fiber amplifiers

Ytterbium

Optical parametric oscillators

Absorption

Oscillators

Diodes

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