9 November 2018 Coherence automatic adjustment of the optical pulses inside mode-lock fiber laser cavity
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In the current work we demonstrate mode-locked fiber laser with automatic adjustment a coherence degree of the output pulses. As a source of the pulses we used 8-figure fiber laser with two amplifying fibers inside both loops of the laser cavity. Such configuration provides various pulsed regimes that have different degree of coherence from fully mode-locked single scale pulses to partly mode-locked double scale pulses. To search a pulsed regime with defined parameters we applied automatic genetic algorithm. To prove the feasibility of the genetic algorithm we applied it to find double – scale pulsed regimes with a fixed envelope duration of 50 ps and the contrast of the coherence peak in range of 0.02 – 0.5.
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A. Y. Kokhanovskiy, A. V. Ivanenko, S. K. Kobtsev, and S. K. Turitsyn "Coherence automatic adjustment of the optical pulses inside mode-lock fiber laser cavity", Proc. SPIE 10825, Quantum and Nonlinear Optics V, 1082518 (9 November 2018); Logo
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Fiber lasers

Genetic algorithms

Mode locking

Coherence (optics)

Laser resonators

Laser systems engineering

Picosecond phenomena

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