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High-power femtosecond Yb-doped single-polarization photonic crystal fiber laser

: Ortac, B.; Lecaplain, C.; Hideur, A.; Limpert, J.; Tünnermann, A.


Broeng, J. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Fiber lasers V. Technology, systems, and applications : 21 - 24 January 2008, San Jose, California, USA
Bellingham, WA: SPIE, 2008 (Proceedings of SPIE 6873)
ISBN: 978-0-8194-7048-5
Paper 687321
Conference "Fiber Lasers - Technology, Systems, and Applications" <5, 2008, San Jose/Calif.>
Conference Paper
Fraunhofer IOF ()

We report, to the first time to our knowledge, on a passively mode-locked single-polarization single-transverse-mode large-mode-area photonic crystal fiber laser operating in the dispersion compensation free regime. In the single-pulse regime, the laser generates 1.6 W of average power with 3.7 ps pulses at a repetition rate of 63 MHz, corresponding to a pulse energy of 25 nJ. Stable and self-starting operation is obtained by adapting the spot size at the saturable absorber mirror to the pulse evolution in the low-nonlinearity fiber. The pulses are compressible down to 750 fs. The presented approach demonstrates the scaling potential of fiber based short pulse oscillators towards high-power ultra-compact all-fiber environmentally-stable configuration.