Materials, Photonic Devices, and Sensors

All-optical Mach–Zehnder interferometer switching based on the phase-shift multiplication effect of an analog on the electromagnetically induced transparency effect

[+] Author Affiliations
Boyun Wang, Liangbin Xiong, Qingdong Zeng, Zhihong Chen, Hao Lv, Yaoming Ding, Jun Du, Huaqing Yu

Hubei Engineering University, School of Physics and Electronic-information Engineering, Xiaogan 432000, China

Opt. Eng. 55(6), 067104 (Jun 10, 2016). doi:10.1117/1.OE.55.6.067104
History: Received February 26, 2016; Accepted May 26, 2016
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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.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Boyun Wang ; Liangbin Xiong ; Qingdong Zeng ; Zhihong Chen ; Hao Lv, et al.
"All-optical Mach–Zehnder interferometer switching based on the phase-shift multiplication effect of an analog on the electromagnetically induced transparency effect", Opt. Eng. 55(6), 067104 (Jun 10, 2016). ; http://dx.doi.org/10.1117/1.OE.55.6.067104


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