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Proceedings Paper

Ultrashort pulse generated by a new type of nonlinear crystals
Author(s): Huijuan He; Yutian Lu; Quingchun Zhao; Yongchun Li
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Paper 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.

Paper Details

Date Published: 30 May 1995
PDF: 9 pages
Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); doi: 10.1117/12.209637
Show Author Affiliations
Huijuan He, Shanghai Institute of Optics and Fine Mechanics (China)
Yutian Lu, Shanghai Institute of Optics and Fine Mechanics (China)
Quingchun Zhao, Shanghai Institute of Optics and Fine Mechanics (China)
Yongchun Li, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 2513:
21st International Congress on: High-Speed Photography and Photonics
Ung Kim; Joon-Sung Chang; Seung-Han Park, Editor(s)

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