Chirped amplification of 50-fs 100-uJ pulse at the repetition rate of 5 kHz

Guofu Chen; Sanghong Zhao; Yishan Wang; Xianhua Wang; Xun Hou

doi:10.1117/12.273445

28 May 1997 Chirped amplification of 50-fs 100-uJ pulse at the repetition rate of 5 kHz

Guofu Chen, Sanghong Zhao, Yishan Wang, Xianhua Wang, Xun Hou

Proceedings Volume 2869, 22nd International Congress on High-Speed Photography and Photonics; (1997) https://doi.org/10.1117/12.273445
Event: 22nd International Congress on High-Speed Photography and Photonics, 1996, Santa Fe, NM, United States

Abstract

This paper presents a Ti-sapphire-based laser amplification system in which the technique of a chirped- pulse- amplification is used. It consists of a laser oscillator, a pulse stretcher, a regenerative amplifier and a pulse compressor. The laser oscillator is a home-made self-mode- locked Ti-sapphire (3 mm long) oscillator. The oscillator pumped by 5 W of cw all line Argon laser can generate Fourier-transform-limited sub-20 fs duration pulses at a 91 MHZ repetition rate, a center wavelength of 800 nm, a FWHM bandwidth of a spectrum of 80 nm. The seed pulses from the oscillator are stretched by a factor of 1000 with a four- pass grating stretcher at first. After stretching, these pulses are seeded into a Ti-sapphire regenerative amplifier pumped by a frequency-doubled Q-switched a Nd:YAG laser at 5 KHZ. We have obtained single-pulse energy of 100 (mu) J, pulse duration of 50 fs at the repetition rate of 5 KHZ.

Citation Download Citation

Guofu Chen, Sanghong Zhao, Yishan Wang, Xianhua Wang, and Xun Hou "Chirped amplification of 50-fs 100-uJ pulse at the repetition rate of 5 kHz", Proc. SPIE 2869, 22nd International Congress on High-Speed Photography and Photonics, (28 May 1997); https://doi.org/10.1117/12.273445

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KEYWORDS

Oscillators

Optical amplifiers

Mirrors

Argon ion lasers

Sapphire lasers

Amplifiers

Laser systems engineering

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