Broad-flattened bandwidth wavelength conversion based on difference-frequency generation in aperiodically poled lithium niobate

Yuejiang Song; Li Zhan; Qinghao Ye; YuXing Xia

doi:10.1117/12.481260

28 August 2002 Broad-flattened bandwidth wavelength conversion based on difference-frequency generation in aperiodically poled lithium niobate

Yuejiang Song, Li Zhan, Qinghao Ye, YuXing Xia

Author Affiliations +

Proceedings Volume 4904, Optical Fiber and Planar Waveguide Technology II; (2002) https://doi.org/10.1117/12.481260
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

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.

Citation Download Citation

Yuejiang Song, Li Zhan, Qinghao Ye, and YuXing Xia "Broad-flattened bandwidth wavelength conversion based on difference-frequency generation in aperiodically poled lithium niobate", Proc. SPIE 4904, Optical Fiber and Planar Waveguide Technology II, (28 August 2002); https://doi.org/10.1117/12.481260

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