High-power VCSEL side pumped 2° wedge angle Nd:YAG repetition rate 1kHz four-pulses sequence picosecond regenerative amplifier

Ce Yang; Meng Chen

doi:10.1117/12.2506216

15 November 2018 High-power VCSEL side pumped 2° wedge angle Nd:YAG repetition rate 1kHz four-pulses sequence picosecond regenerative amplifier

Ce Yang, Meng Chen

Author Affiliations +

Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109644V (2018) https://doi.org/10.1117/12.2506216
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

Abstract

A four-pulses sequence picosecond 1064nm regenerative amplifier system with repetition rate of 1 kHz are obtained, which with the average power of 9.2 W and beam quality M² factor of 1.2. The Nd: YAG crystal with wedge angle of 2° and size of Φ 4×63 mm is adopted in the regenerative amplifier and around by three VCSEL pumping arrays with an angle of 120°. A laser diode (LD) pumped Nd: YVO₄ crystal SESAM mode-locked seed laser is broadened from 20 to 260 ps by double-pass Volume Bragg Gratings and divided into equal amplitudes four-pulse sequence with the pulse spacing of 1ns by beam splitter mirrors. The four-pulse sequence enters the regenerative amplifier in order and the power is amplified from 0.68 to 9.5 W.

Citation Download Citation

Ce Yang and Meng Chen "High-power VCSEL side pumped 2° wedge angle Nd:YAG repetition rate 1kHz four-pulses sequence picosecond regenerative amplifier", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109644V (15 November 2018); https://doi.org/10.1117/12.2506216

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