High-pulse-quality Yb-fiber amplifier generation of 10 μJ, 250 fs pulses at 500 kHz repetition rate

Niu, Jia; Liu, Bowen; Song, Huanyu; Zhao, S Z; Li, Shaobei; Gu, Xinhua; Hu, Minglie

doi:10.1016/j.ijleo.2019.163399

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…Any dispersion mismatch introduced by different components can be compensated by finely tuning the temperature profile applied to a TCFBG. Similarly, any additional third-order dispersion added by grating compressor can be effectively pre-compensated by a TCFBG [39], [40]. However, non-linear phase introduced by self-phase modulation in fiber amplifiers could be pre-compensated to a very limited extend (Bintegral of 1.3 [39]).…”

Section: Introductionmentioning

confidence: 99%

Compensation of optical nonlinearities in a femtosecond laser system in a broad operation regime

Černe

Šušnjar

Petkovšek

2021

Optics & Laser Technology

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Section: Introductionmentioning

confidence: 99%

Compensation of optical nonlinearities in a femtosecond laser system in a broad operation regime

Černe

Šušnjar

Petkovšek

2021

Optics & Laser Technology

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“…There have been many methods already demonstrated that allow for tunable compensation of the nonlinear phase such as the use of different pulse-shaping techniques in a feedback loop with a pulse characterization technique at the laser output [24][25][26][27][28][29]. It was recently shown that a tunable chirped fiber Bragg grating (TCFBG) can efficiently compensate nonlinear phase up to 4π [12].…”

Section: Introductionmentioning

confidence: 99%

Adaptive Nonlinear Phase Compensation in a Femtosecond Hybrid Laser with Varying Pulse Repetition Rate

2021

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In this manuscript, an implementation of a tunable nonlinear phase compensation method is demonstrated on a typical femtosecond hybrid laser consisting of a fiber pre-amplifier and an additional solid-state amplifier. This enables one to achieve constant laser pulse parameters over a wide range of pulse repetition rates in such a laser. As the gain in the solid-state amplifier is inversely proportional to the input power, the shortfall in the solid-state gain at higher repetition rates must be compensated for with fiber pre-amplifier to ensure constant pulse energy. This increases the accumulated nonlinear phase and consequently alters the laser pulse parameters such as pulse duration and Strehl ratio. To overcome this issue, the nonlinear phase must be compensated for, and what is more it should be compensated for to a different extent at different pulse repetition rates. This is achieved with a tunable CFBG, used also as a pulse stretcher. Using this concept, we demonstrate that constant laser pulse parameters such as pulse energy, pulse duration and Strehl ratio can be achieved in a hybrid laser regardless of the pulse repetition rate.

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High-pulse-quality Yb-fiber amplifier generation of 10 μJ, 250 fs pulses at 500 kHz repetition rate

Cited by 2 publications

References 22 publications

Compensation of optical nonlinearities in a femtosecond laser system in a broad operation regime

Compensation of optical nonlinearities in a femtosecond laser system in a broad operation regime

Adaptive Nonlinear Phase Compensation in a Femtosecond Hybrid Laser with Varying Pulse Repetition Rate

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