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Passively mode-locked single-polarization microstructure fiber laser

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

:
Postprint (293 KByte; PDF; )

Optics Express 16 (2008), No.3, pp.2122-2128
ISSN: 1094-4087
English
Journal Article, Electronic Publication
Fraunhofer IOF ()
pulse dynamic; femtosecond; energy; soliton

Abstract
The generation of high-power and stable ultra-short pulses from a passively mode-locked purely normal dispersion fiber laser is reported using the unique combination of a photonic crystal fiber featuring single-polarization, single-mode, and low nonlinearity with a high modulation depth semiconductor saturable absorber mirror. The environmentally-stable, self-starting fiber laser generates 1.6 W of average power at a repetition rate of 63 MHz, corresponding to a pulse energy of 25 nJ. The emitted pulses are positively chirped with a pulse duration of 3.7 ps. They are compressible down to a near transform-limited duration of 750 fs. Numerical simulations are in good agreement with the experimental results.

: http://publica.fraunhofer.de/documents/N-71046.html