High-power linear-polarized narrow linewidth photonic crystal fiber amplifier

Christian Wirth; Thomas Schreiber; Miroslaw Rekas; Igor Tsybin; Thomas Peschel; Ramona Eberhardt; Andreas Tünnermann

doi:10.1117/12.841650

17 February 2010 High-power linear-polarized narrow linewidth photonic crystal fiber amplifier

Christian Wirth, Thomas Schreiber, Miroslaw Rekas, Igor Tsybin, Thomas Peschel, Ramona Eberhardt, Andreas Tünnermann

Proceedings Volume 7580, Fiber Lasers VII: Technology, Systems, and Applications; 75801H (2010) https://doi.org/10.1117/12.841650
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

We report on the high power amplification of narrow linewidth laser radiation with close to diffraction limited beam quality using a large mode area photonic crystal fiber amplifier. The observation of threshold-like higher order mode amplification by transverse spatial-hole burning at the highest power level is reported. The measured M² stays below 1.3 but increases at the critical power level, where the fundamental mode turns into the next higher order mode. At the maximum power of 1.2 kW a linewidth of <80 pm limited by self-phase modulation is obtained.

Citation Download Citation

Christian Wirth, Thomas Schreiber, Miroslaw Rekas, Igor Tsybin, Thomas Peschel, Ramona Eberhardt, and Andreas Tünnermann "High-power linear-polarized narrow linewidth photonic crystal fiber amplifier", Proc. SPIE 7580, Fiber Lasers VII: Technology, Systems, and Applications, 75801H (17 February 2010); https://doi.org/10.1117/12.841650

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