10 June 2016 All-optical Mach–Zehnder interferometer switching based on the phase-shift multiplication effect of an analog on the electromagnetically induced transparency effect
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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.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Boyun Wang, Liangbin Xiong, Qingdong Zeng, Zhihong Chen, Hao Lv, Yaoming Ding, Jun Du, Huaqing Yu, "All-optical Mach–Zehnder interferometer switching based on the phase-shift multiplication effect of an analog on the electromagnetically induced transparency effect," Optical Engineering 55(6), 067104 (10 June 2016). https://doi.org/10.1117/1.OE.55.6.067104 . Submission:
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