Analysis of broadband optical coupling from single photon emission to SiNx optical waveguides in very near-infrared range.

Autor:	Jaturaphagorn, Pawaphat, Chattham, Nattaporn, Pon-On, Weeraphat, Wongchoosuk, Chatchawal, Pattanaporkratana, Apichart, Chiangga, Surasak, Chaisakul, Papichaya
Předmět:	OPTICAL waveguides INTEGRATED circuits PHOTON emission REFRACTIVE index WAVEGUIDES PHOTONS
Zdroj:	Applied Physics B: Lasers & Optics; May2023, Vol. 129 Issue 5, p1-10, 10p
Abstrakt:	Knowledge of the positions, polarizations, and local environment effect on the light coupling efficiency from a single photon source to an optical waveguide is critically important for the development of an integrated single photon emitter. In this paper, we contribute to a holistic investigation on the dependence of the wideband coupling efficiency and Purcell enhancement factor on the emitter positions, orientations, refractive indices and geometrical parameters of SiNx waveguides for broadband CMOS-compatible quantum photonic integrated circuits using FDTD analysis in very near-infrared ranges. The obtainable spectral range with respect to SiNx waveguide dimensions and optical parameters, the polarization-dependent coupling efficiency of a single photon source with respect to the displacement from the waveguide edge facet, the horizontal and vertical positional variations, and the etching required to maximize and maintain the coupling efficiency values over the spectral range are discussed. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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