Ultrashort pulse generated by a new type of nonlinear crystals

Huijuan He; Yutian Lu; Quingchun Zhao; Yongchun Li

doi:10.1117/12.209637

30 May 1995 Ultrashort pulse generated by a new type of nonlinear crystals

Huijuan He, Yutian Lu, Quingchun Zhao, Yongchun Li

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209637
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

Abstract

New type nonlinear crystals are widely used materials for frequency doubling and parametric process to generate the ultrashort pulse over a large wavelength range. The angle phase-matching curves for optical parametric generation in three principal planes of biaxial crystal KTP pumped by 355 nm, 532 nm and 1064 nm ultrashort pulse light have been calculated and analyzed. The calculated results have been confirmed by experiment. Picosecond tunable parametric laser from 630 to 3420 nm was obtained with a 20 mm long KTP pumped by 532 nm in the X-Z plane via type II phase matching. The maximum energy conversion efficiency is 30%, pulse duration 40 ps, repetition rate 10 pps and maximum peak power of signal wave is more than 30 MW. Efficient second harmonic generation pumped by ultrashort pulsed parametric laser has been obtained from 427- 470 nm in KNbO₃ with 1.5 mm in length at room temperature. The energy conversion efficiency is over 40%. The peak power of 30 ps pulsed blue light is up to 60 KW.

Citation Download Citation

Huijuan He, Yutian Lu, Quingchun Zhao, and Yongchun Li "Ultrashort pulse generated by a new type of nonlinear crystals", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209637

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