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Proceedings Paper

Tunable wavelength conversion based on cascaded sum and difference frequency generation with double-conversion configuration using M-QPM-LN waveguides
Author(s): Yiju Wang; Yuanqing Huang; Zihua Weng; Huangping Yan; Zhaoxi Wu; Jin Wan
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Paper Abstract

In this paper, we proposed a novel variable operation of a DC-OFS based on double SFG+DFG nonlinearity process with double-pass configuration for the first time. In this scheme, the available nonlinear crystal length is used twice: forward for SFG and backward for DFG in each conversion and this device is called double-pass SFG+DFG wavelength converter as the SF wave propagates twice in the waveguide. We used the novel multiple-quasi-phase-matched LiNbO3 (M-QPM-LN) waveguides having the continuously-phase-modulated domain structure, which can be operated by multiple pump wavelengths with minimum loss of efficiency. The frequency spacing of control signal-a is twice as large as the control signal-b. Conversion bandwidth is the frequency difference of control signal-b and control signal-a. We discussed Double-SFG+DFG-OFS with double-pass configuration theoretically and gave the formula of the input power of input signal, the two controlling light and pump light, which proposed a simple and feasible way to optimize the performance of the device. In this scheme, the advantages of the cascaded SFG+DFG scheme and the DC-OFS scheme are combined to a great extent. We believe this double-pass cascaded SFG+DFG DC-OFS must be better than single-pass cascaded SFG+DFG DC-OFS for constructing future flexible photonic networks.

Paper Details

Date Published: 4 January 2008
PDF: 8 pages
Proc. SPIE 6839, Nonlinear Optics: Technologies and Applications, 68391C (4 January 2008); doi: 10.1117/12.756272
Show Author Affiliations
Yiju Wang, Xiamen Univ. (China)
Yuanqing Huang, Xiamen Univ. (China)
Zihua Weng, Xiamen Univ. (China)
Huangping Yan, Xiamen Univ. (China)
Zhaoxi Wu, Xiamen Univ. (China)
Jin Wan, Xiamen Univ. (China)

Published in SPIE Proceedings Vol. 6839:
Nonlinear Optics: Technologies and Applications
Yiping Cui; Qihuang Gong; Yuen-Ron Shen, Editor(s)

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