Power scaling of fiber-based amplifiers seeded with microchip lasers

Paul E. Schrader; Jean-Philippe Fève; Roger L. Farrow; Dahv A. V. Kliner; Randal L. Schmitt; Binh T. Do

doi:10.1117/12.778388

20 February 2008 Power scaling of fiber-based amplifiers seeded with microchip lasers

Paul E. Schrader, Jean-Philippe Fève, Roger L. Farrow, Dahv A. V. Kliner, Randal L. Schmitt, Binh T. Do

Proceedings Volume 6871, Solid State Lasers XVII: Technology and Devices; 68710T (2008) https://doi.org/10.1117/12.778388
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

We summarize the performance of mode-filtered, Yb-doped fiber amplifiers seeded by microchip lasers with nanosecond-duration pulses. These systems offer the advantages of compactness, efficiency, high peak power, diffraction-limited beam quality, and widely variable pulse energy and repetition rate. We review the fundamental limits on pulsed fiber amplifiers imposed by nonlinear processes, with a focus on the specific regime of nanosecond pulses. Different design options for the fiber and the seed laser are discussed, including the effects of pulse duration, wavelength, and linewidth. We show an example of a microchip-seeded, single-stage, single-pass fiber amplifier that produced pulses with 1.1 MW peak power, 0.76 mJ pulse energy, smooth temporal and spectral profiles, diffractionlimited beam quality, and linear polarization.

Citation Download Citation

Paul E. Schrader, Jean-Philippe Fève, Roger L. Farrow, Dahv A. V. Kliner, Randal L. Schmitt, and Binh T. Do "Power scaling of fiber-based amplifiers seeded with microchip lasers", Proc. SPIE 6871, Solid State Lasers XVII: Technology and Devices, 68710T (20 February 2008); https://doi.org/10.1117/12.778388

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