Novel wavelength converter based on double-pass cascaded second-order interactions of sum-frequency generation and difference-frequency generation

Song Yu; Wang-Chun Yang; Wanyi Gu

doi:10.1117/12.574428

31 January 2005 Novel wavelength converter based on double-pass cascaded second-order interactions of sum-frequency generation and difference-frequency generation

Song Yu, Wang-Chun Yang, Wanyi Gu

Author Affiliations +

Proceedings Volume 5624, Semiconductor and Organic Optoelectronic Materials and Devices; (2005) https://doi.org/10.1117/12.574428
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

A novel scheme of all optical wavelength converter is introduced, in which double-pass configuration based on sum- and difference-frequency generation (SFG+DFG) is proposed for the first time. A concept named "balance condition" is presented to arrange the powers and wavelengths of the two pump sources. Under this condition, the process of SFG is irreversible. Thus, the two pump sources can be utilized completely and the sum-frequency wave can be generated with high power. The efficiency of the system is therefore enhanced. The theoretical expression of the output power of the converted wave and signal are derived when loss is not taken into accounts. In addition, the concept of "Maximum Length" of the waveguide is introduced to avoid the output converted power being reduced due to its oscillating behavior. Finally, the "Maximum Length" is investigated by numerical calculations.

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Song Yu, Wang-Chun Yang, and Wanyi Gu "Novel wavelength converter based on double-pass cascaded second-order interactions of sum-frequency generation and difference-frequency generation", Proc. SPIE 5624, Semiconductor and Organic Optoelectronic Materials and Devices, (31 January 2005); https://doi.org/10.1117/12.574428

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