Coherent femtosecond pulse combining of multiple parallel chirped pulse fiber amplifiers | Zendy

Leo A. Siiman | Zendy; Wei-zung Chang | Zendy; Tong Zhou | Zendy; Almantas Galvanauskas | Zendy

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Coherent femtosecond pulse combining of multiple parallel chirped pulse fiber amplifiers

Author(s) -

Leo A. Siiman,

Wei-zung Chang,

Tong Zhou,

Almantas Galvanauskas

Publication year - 2012

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.018097

Subject(s) - optics , femtosecond , detector , femtosecond pulse shaping , pulse shaping , coherence (philosophical gambling strategy) , pulse (music) , amplifier , physics , optoelectronics , laser , cmos , quantum mechanics

We report on femtosecond pulse combining with up to four parallel chirped-pulse fiber amplifier channels. Active phase locking is implemented using the LOCSET (Locking of Optical Coherence by Single-detector Electronic-frequency Tagging) single detector feedback technique, resulting in 96.4%, 94.0%, and 93.9% relative combining efficiency with two, three, and four channels respectively. Theoretical and experimental analysis of combining efficiency dependence on amplitude and phase noise shows convergence to a fixed value with increasing number of channels, indicating that multi-channel pulse combining with LOCSET feedback should be scalable to very large numbers of channels.

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