3.5-GHz Intra-Burst Repetition Rate Ultrafast Yb-Doped Fiber Laser
Date
2016
Authors
Kerse, C.
Kalaycioʇlu, H.
Elahi, P.
Akçaalan, Ö.
Ilday, F. Ö.
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Abstract
We report on an all-fiber Yb laser amplifier system with an intra-burst repetition rate of 3.5 GHz. The system is able to produce minimum of 15-ns long bursts containing approximately 50 pulses with a total energy of 215μJ at a burst repetition rate of 1 kHz. The individual pulses are compressed down to the subpicosecond level. The seed signal from a 108 MHz fiber oscillator is converted to approximately 3.5 GHz by a multiplier consisting of six cascaded 50/50 couplers, and then amplified in ten stages. The highly cascaded amplification suppresses amplified spontaneous emission at low repetition rates. Nonlinear interactions between overlapping pulses within a burst is also discussed.
Source Title
Optics Communications
Publisher
Elsevier
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Language
English