Hybrid femtosecond laser system based on a Yb:KGW regenerative amplifier for NP polarization

Authors :: Yuxi Chu
Minglie Hu
Huanyu Song
Lu Chai
Dongyu Yan
Bowen Liu
Chingyue Wang
Source :: Chinese Optics Letters. 17:041404
Publication Year :: 2019
Publisher :: Shanghai Institute of Optics and Fine Mechanics, 2019.
Abstract: We report a hybrid femtosecond laser system based on a femtosecond Yb-doped fiber laser and a Yb-doped potassium gadolinium tungstate (Yb:KGW) regenerative amplifier. To match the central wavelength of the seed source, a Yb:KGW crystal is used in the regenerative amplifier for Np polarization. We study and optimize the dynamics of nonlinear amplification to alleviate the gain narrowing effect. With optimization, the system can output 270 fs pulses with 21 μJ pulse energy at a 60 kHz repetition rate.

Subjects :: business.industry
Polarization (waves)
Laser
Atomic and Molecular Physics, and Optics
Regenerative amplifier
Electronic, Optical and Magnetic Materials
law.invention
Wavelength
Optics
Regenerative amplification
law
Fiber laser
Femtosecond
Electrical and Electronic Engineering
business
Potassium gadolinium tungstate

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