18 April 2018 Rectangular-cladding silicon slot waveguide with improved nonlinear performance
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Abstract
Silicon slot waveguides have great potential in hybrid silicon integration to realize nonlinear optical applications. We propose a rectangular-cladding hybrid silicon slot waveguide. Simulation result shows that, with a rectangular-cladding, the slot waveguide can be formed by narrower silicon strips, so the two-photon absorption (TPA) loss in silicon is decreased. When the cladding material is a nonlinear polymer, the calculated TPA figure of merit (FOMTPA) is 4.4, close to the value of bulk nonlinear polymer of 5.0. This value confirms the good nonlinear performance of rectangular-cladding silicon slot waveguides.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Zengzhi Huang, Zengzhi Huang, Qingzhong Huang, Qingzhong Huang, Yi Wang, Yi Wang, Jinsong Xia, Jinsong Xia, } "Rectangular-cladding silicon slot waveguide with improved nonlinear performance," Optical Engineering 57(4), 046108 (18 April 2018). https://doi.org/10.1117/1.OE.57.4.046108 . Submission: Received: 13 January 2018; Accepted: 22 March 2018
Received: 13 January 2018; Accepted: 22 March 2018; Published: 18 April 2018
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