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Optical Engineering

Three-core nonlinear directional coupler with variable coupling coefficient
Author(s): Gang Jun Liu; Binming Liang; Qu Li; Guo Liang Jin
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Paper Abstract

Three core nonlinear directional couplers (TCNLDCs) with variable coupling coefficients (VCCs) are proposed. Their linear operation is examined analytically. Three types of VCC TCNLDCs are investigated numerically. Their transmission features are compared with those of their two-core counterparts. It is shown that the switching curves of VCC TCNLDCs are sharper than those of their two-core counterparts. Also the features of different types of VCC TCNLDCs are compared to each other and to the constant coupling coefficient (CCC) TCNLDC. It is found that the sidelobes in the postswitching region can be suppressed with VCC TCNLDCs and the peak transmission of VCC TCNLDCs is higher.

Paper Details

Date Published: 1 October 2003
PDF: 6 pages
Opt. Eng. 42(10) doi: 10.1117/1.1604398
Published in: Optical Engineering Volume 42, Issue 10
Show Author Affiliations
Gang Jun Liu, Shanghai Jiaotong Univ. (China)
Binming Liang, Shanghai Jiao Tong Univ. (China)
Qu Li, Shanghai Jiao Tong Univ. (China)
Guo Liang Jin, Shanghai Jiao Tong Univ. (China)

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