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Proceedings Paper

Broad-flattened bandwidth wavelength conversion based on difference-frequency generation in aperiodically poled lithium niobate
Author(s): Yuejiang Song; Li Zhan; Qinghao Ye; YuXing Xia
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Paper Abstract

We propose a general routine, Genetic-Simulated Annealing method (GSA) for the optimal design of quasi-phase matched (QPM) non-uniform grating. Here this method is applied to the design of the flat broadened wavelength conversion bandwidth of 40-mm aperiodically poled lithium niobate (APLN) based on difference-frequency generation (DFG). The flat conversion bandwidth of APLN is broadened from the original 65nm in a 40-mm periodically poled lithium niobate (PPLN) to the pre-designated 130 nm in a 40-mm APLN, which conversion efficiency is 6.7 dB higher than that of 12.4-mm PPLN under the same conversion bandwidth.

Paper Details

Date Published: 28 August 2002
PDF: 7 pages
Proc. SPIE 4904, Optical Fiber and Planar Waveguide Technology II, (28 August 2002); doi: 10.1117/12.481260
Show Author Affiliations
Yuejiang Song, Shanghai Jiaotong Univ. (China)
Li Zhan, Shanghai Jiaotong Univ. (China)
Qinghao Ye, Shanghai Jiaotong Univ. (China)
YuXing Xia, Shanghai Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 4904:
Optical Fiber and Planar Waveguide Technology II
Shuisheng Jian; Steven Shen; Katsunari Okamoto, Editor(s)

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