Gain clamping by predictive model pump control in MOPA fiber laser

M. Ole Berendt; H. Barbosa; M. Melo

doi:10.1117/12.2510680

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7 March 2019 Gain clamping by predictive model pump control in MOPA fiber laser

M. Ole Berendt; H. Barbosa; M. Melo

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Proceedings Volume 10897, Fiber Lasers XVI: Technology and Systems; 108972L (2019) https://doi.org/10.1117/12.2510680
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

We are presenting an inversion estimator based controller for master oscillator power amplifier (MOPA) laser systems. The controller is here applied to a Ytterbium doped MOPA fiber laser. The control algorithm regulates the pump power to limit the amplifier gain, so operation is restricted to the boundaries set by damage threshold or nonlinearities. In particular, it allows low pulse repetition frequency operation down to single shot and arbitrary gating.

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M. Ole Berendt, H. Barbosa, and M. Melo "Gain clamping by predictive model pump control in MOPA fiber laser", Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 108972L (7 March 2019); doi: 10.1117/12.2510680; https://doi.org/10.1117/12.2510680

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