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Optical Engineering • new

All-optical Mach–Zehnder interferometer switching based on the phase-shift multiplication effect of an analog on the electromagnetically induced transparency effect
Author(s): Boyun Wang; Liangbin Xiong; Qingdong Zeng; Zhihong Chen; Hao Lv; Yaoming Ding; Jun Du; Huaqing Yu
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Paper Abstract

We theoretically and numerically investigate all-optical Mach–Zehnder interferometer switching based on the phase-shift multiplication effect of an all-optical analog on the electromagnetically induced transparency effect. The free-carrier plasma dispersion effect modulation method is applied to improve the tuning rate with a response time of picoseconds. All observed schemes are analyzed rigorously through finite-difference time-domain simulations and coupled-mode formalism. Compared with no phase-shift multiplication effect, the average pump power of all-optical switching required to yield the π-phase shift difference decreases by 55.1%, and the size of the modulation region is reduced by 50.1% when the average pump power reaches 60.8 mW. This work provides a new direction for low-power consumption and miniaturization of microstructure integration light-controlled switching devices in optical communication and quantum information processing.

Paper Details

Date Published: 10 June 2016
PDF: 7 pages
Opt. Eng. 55(6) 067104 doi: 10.1117/1.OE.55.6.067104
Published in: Optical Engineering Volume 55, Issue 6
Show Author Affiliations
Boyun Wang, Hubei Engineering Univ. (China)
Liangbin Xiong, Hubei Engineering Univ. (China)
Qingdong Zeng, Hubei Engineering Univ. (China)
Zhihong Chen, Hubei Engineering Univ. (China)
Hao Lv, Hubei Engineering Univ. (China)
Yaoming Ding, Hubei Engineering Univ. (China)
Jun Du, Hubei Engineering Univ. (China)
Huaqing Yu, Hubei Engineering Univ. (China)


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