2D constant-loss taper for mode conversion

Alexandre Horth; Raman Kashyap; Nathaniel J. Quitoriano

doi:10.1117/12.2079491

16 March 2015 2D constant-loss taper for mode conversion

Alexandre Horth, Raman Kashyap, Nathaniel J. Quitoriano

Proceedings Volume 9357, Physics and Simulation of Optoelectronic Devices XXIII; 93571S (2015) https://doi.org/10.1117/12.2079491
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Proposed in this manuscript is a novel taper geometry, the constant-loss taper (CLT). This geometry is derived with 1D slabs of silicon embedded in silicon dioxide using coupled-mode theory (CMT). The efficiency of the CLT is compared to both linear and parabolic tapers using CMT and 2D finite-difference time-domain simulations. It is shown that over a short 2D, 4.45 μm long taper the CLT's mode conversion efficiency is ~90% which is 10% and 18% more efficient than a 2D parabolic or linear taper, respectively.

Citation Download Citation

Alexandre Horth, Raman Kashyap, and Nathaniel J. Quitoriano "2D constant-loss taper for mode conversion", Proc. SPIE 9357, Physics and Simulation of Optoelectronic Devices XXIII, 93571S (16 March 2015); https://doi.org/10.1117/12.2079491

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