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Proceedings Paper

Novel wavelength converter based on double-pass cascaded second-order interactions of sum-frequency generation and difference-frequency generation
Author(s): Song Yu; Wang-Chun Yang; Wanyi Gu
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Paper 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.

Paper Details

Date Published: 31 January 2005
PDF: 10 pages
Proc. SPIE 5624, Semiconductor and Organic Optoelectronic Materials and Devices, (31 January 2005); doi: 10.1117/12.574428
Show Author Affiliations
Song Yu, Bejing University of Posts and Telecommunications (China)
Wang-Chun Yang, Bejing University of Posts and Telecommunications (China)
Wanyi Gu, Bejing University of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 5624:
Semiconductor and Organic Optoelectronic Materials and Devices
Chung-En Zah; Yi Luo; Shinji Tsuji, Editor(s)

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