Mode locked multi-core photonic crystal fiber laser | Zendy

Fang Xiaohui | Zendy; Minglie Hu | Zendy; Youjian Song | Zendy; Chen Xie | Zendy; Chai Lu | Zendy; Qingyue Wang | Zendy

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Mode locked multi-core photonic crystal fiber laser

Author(s) -

Fang Xiaohui,

Minglie Hu,

Youjian Song,

Chen Xie,

Chai Lu,

Qingyue Wang

Publication year - 2011

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.60.064208

Subject(s) - materials science , optics , fiber laser , photonic crystal fiber , laser , core (optical fiber) , optoelectronics , fiber bragg grating , slope efficiency , mode locking , dispersion (optics) , fiber , saturable absorption , physics , wavelength , composite material

A mode locked fiber laser based on Yb-doped large mode area photonic crystal fiber operating in the all-normal dispersion regime is experimentally studied. The eighteen cores of the gain fiber are arranged in array-type geometry with an equivalent mode diameter of about 52 μm. A sigma laser cavity is used without using any elements for dispersion compensation. Reliable self-starting mode-locking is achieved using a fast semiconductor saturable absorber mirror. The laser directly produces 4.92 ps chirped pulses at a 44.68 MHz repetition rate for an average power of 3.3 W corresponding to a pulse energy of 74 nJ. The pulses are compressed to 780 fs with a grating pair outside the cavity.

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