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Proceedings Paper

Influence of signal and pump wavelengths on the characteristics of ultrashort-pulse optical parametric generation
Author(s): Xu Li; Zhen-he Zhu; Tao Gu; Yu-nan Sun
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Paper Abstract

The shapes and durations of generated pulses and the output intensity of ultrashort-pulse (USP) optical parametric generation (OPG) for two cases of λp=0.4μm and λp=0.8μm are calculated as functions of signal wavelength. The calculation result shows that the conversion efficiency of photon number reduces when the generated pulse frequencies are tuned away from the degenerate point (νsip/2), and the signal pulse duration is lengthened when the generated pulse frequencies are tuned far away from the degenerate point. These results can be explained. For this purpose, the intrapulse group-velocity dispersion (IGVD) and group-velocity mismatch (GVM) parameters are calculated as functions of signal wavelength; a new reference of nonlinear interaction length -- pulse-leaving length is introduced to describe the effects of GVM more directly and is calculated as a function of signal wavelength; the phase mismatch for side frequencies of signal, idler and pump pulses,Δksi,Δkps and Δkpi are calculated as functions of signal wavelength.

Paper Details

Date Published: 28 January 2005
PDF: 10 pages
Proc. SPIE 5646, Nonlinear Optical Phenomena and Applications, (28 January 2005); doi: 10.1117/12.580371
Show Author Affiliations
Xu Li, Beijing Institute of Technology (China)
North China Institute of Science and Technology (China)
Zhen-he Zhu, Central Univ. for Nationalities (China)
Tao Gu, North China Institute of Science and Technology (China)
Yu-nan Sun, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 5646:
Nonlinear Optical Phenomena and Applications
Qihuang Gong; Yiping Cui; Roger A. Lessard, Editor(s)

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