Energy scaling of femtosecond and picosecond fiber oscillators beyond the microjoule level

B. Ortac; M. Baumgartl; O. Schmidt; A. Hideur; I. Sagnes; A. Garnache; J. Limpert; A. Tünnermann

doi:10.1117/12.809069

19 February 2009 Energy scaling of femtosecond and picosecond fiber oscillators beyond the microjoule level

B. Ortac, M. Baumgartl, O. Schmidt, A. Hideur, I. Sagnes, A. Garnache, J. Limpert, A. Tünnermann

Proceedings Volume 7195, Fiber Lasers VI: Technology, Systems, and Applications; 719515 (2009) https://doi.org/10.1117/12.809069
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

We report on the generation of microjoule level picosecond pulses from a mode-locked Yb-doped LMA fiber laser operating in the purely normal dispersion regime. The self-starting oscillator stabilized with slow relaxation semiconductor saturable absorber (SAM) emits 11 W of average power at a pulse repetition rate of 10 MHz, corresponding to a pulse energy of 1.1 μJ. The laser produces a 0.4 nm narrow emission line with 310 ps output pulses. In the femtosecond operation, the oscillator stabilized with fast relaxation SAM emits 9 W of average power at a pulse repetition rate of 9.7 MHz, corresponding to a pulse energy of 927 nJ. The laser produces positively chirped output pulses of 8 ps which are compressed down to 711 fs, corresponding to megawatt peak power. To our knowledge this is the first time that mode-locked fiber oscillators can generate higher pulse energies of beyond microjoule-level at high average output power.

Citation Download Citation

B. Ortac, M. Baumgartl, O. Schmidt, A. Hideur, I. Sagnes, A. Garnache, J. Limpert, and A. Tünnermann "Energy scaling of femtosecond and picosecond fiber oscillators beyond the microjoule level", Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 719515 (19 February 2009); https://doi.org/10.1117/12.809069

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