Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Design of a Beam-coupling System for a Chip-integrated Spectrometer with a Discrete Linear Waveguide

Open Access Open Access

Abstract

In this study, a beam-coupling system is designed to improve the coupling efficiency of achip-integrated spectrometer when the waveguide is arranged in a linear and discrete manner. In the proposed system the beam is shaped to be anti-Gaussian, to deposit adequate energy in the edge waveguides. The beam is discretely coupled to the corresponding waveguide by a microlens array, to improve the coupling efficiency, and is compressed by a toroidal lens to match the linear discrete waveguides. Based on the findings of this study, the coupling efficiency of the spectrometer is shown to increase by a factor of 2.57. Accordingly, this study provides a reference basis for the improvement of the coupling efficiency of other similar spectrometers.

© 2020 Optical Society of Korea

PDF Article
More Like This
Monolithic integration of microlenses on the backside of a silicon photonics chip for expanded beam coupling

Nivesh Mangal, Bradley Snyder, Joris Van Campenhout, Geert Van Steenberge, and Jeroen Missinne
Opt. Express 29(5) 7601-7615 (2021)

Beam Coupling to Linear Waveguides Using Lenslike Waveguides

R. K. Winn and J. H. Harris
Appl. Opt. 14(5) 1213-1216 (1975)

Coupling strategies for silicon photonics integrated chips [Invited]

Riccardo Marchetti, Cosimo Lacava, Lee Carroll, Kamil Gradkowski, and Paolo Minzioni
Photon. Res. 7(2) 201-239 (2019)

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.

Alert me when this article is cited.


Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved