Switching behavior of a nonlinear Mach-Zehnder interferometer with exponentially saturable nonlinearity

Arpita Srivastava; Sarang Medhekar

doi:10.1117/1.OE.51.7.074604

19 July 2012 Switching behavior of a nonlinear Mach-Zehnder interferometer with exponentially saturable nonlinearity

Arpita Srivastava, Sarang Medhekar

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Optical Engineering, Vol. 51, Issue 7, 074604 (July 2012). https://doi.org/10.1117/1.OE.51.7.074604

Abstract

Using beam propagation method, we investigated the switching behavior of a nonlinear Mach-Zehnder interferometer (NMZI). The focus of the present investigation was exponentially saturable type nonlinearity of the NMZI. The results were compared with the results of NMZIs with saturable type nonlinearity. NMZIs with both types of nonlinearity offer stable on and off states; however, exponentially saturable nonlinearity proves to be much better, as NMZIs with this type of nonlinearity offer a stable on state with higher transmission coefficient (i.e., with lower device loss) compared to those with saturable nonlinearity. Moreover, the stable on state could be achieved at much lower power levels.

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Arpita Srivastava and Sarang Medhekar "Switching behavior of a nonlinear Mach-Zehnder interferometer with exponentially saturable nonlinearity," Optical Engineering 51(7), 074604 (19 July 2012). https://doi.org/10.1117/1.OE.51.7.074604

Published: 19 July 2012

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KEYWORDS

Switching

Solids

Refractive index

Nonlinear optics

Beam propagation method

Mach-Zehnder interferometers

Optical engineering

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