首页|High-power all-fiber linearly polarized Yb-doped chirped pulse amplifier based on active polarization control

High-power all-fiber linearly polarized Yb-doped chirped pulse amplifier based on active polarization control

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High-power ultrafast laser amplification based on a non-polarization maintaining fiber chirped pulse amplifier is demon-strated.The active polarization control technology based on the root-mean-square propagation[RMS-prop]algorithm is employed to guarantee a linearly polarized output from the system.A maximum output power of 402.3 W at a repetition rate of 80 MHz is realized with a polarization extinction ratio[PER]of＞11.4 dB.In addition,the reliable operation of the system is verified by examining the stability and noise properties of the amplified laser.The M2 factor of the laser beam at the highest output power is measured to be less than 1.15,indicating a diffraction-limited beam quality.Finally,the amplified laser pulse is temporally compressed t0 755 fs with a highest average power of 273.8 W.This is the first time,to the best of our knowl-edge,that the active polarization control technology was introduced into the high-power ultrafast fiber amplifier.

active polarization controlroot-mean-square propagation algorithmlinearly polarized laserchirped pulse amplificationfemtosecond laserfiber laser

王涛、任帅、常洪祥、任博、郭琨、李灿、马鹏飞、冷进勇、周朴

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College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China

School of Information and Communications,National University of Defense Technology,Wuhan 430035,China

Nanhu Laser Laboratory,National University of Defense Technology,Changsha 410073,China

Hunan Provincial Key Laboratory of High Energy Laser Technology,National University of Defense Technology,Changsha 410073,China

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Director Fund of State Key Laboratory of Pulsed Power Laser TechnologyPostgraduate Scientific Research Innovation Project of Hunan Province

SKL2020ZR02QL20220007

2024

10.3788/COL202422.041403

中国光学快报(英文版)
中国光学学会 中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD
影响因子：1.305
ISSN：1671-7694
年,卷(期)：2024.22(4)