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Updated: Jun 28, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
Published on: April 4, 2017
Integrated photonic coupler based on frustrated total internal reflection
Nathan R Huntoon1, Marc P Christensen, Duncan L MacFarlane
1Department of Electrical Engineering, Southern Methodist University, P.O. Box 750338 Dallas, Texas 75275-0338, USA.
Abstract:
An optical coupler for integrated photonic circuits is presented and analyzed. The coupler is based on frustrated total internal reflection (FTIR) and offers high efficiency in a compact footprint. Analytic expressions for the transmission and reflection coefficients of the coupler are obtained using a plane-wave theory and experimentally verified. Finite-difference time-domain modeling of FTIR is discussed and modeling results of the coupler are presented. A parametric discussion of the FTIR coupler provides design tools for making 3 dB couplers.
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