Open AccessBroadband and compact silicon mode converter designed using a wavefront matching method
Author(s) -
Yukihiro Sawada,
Takeshi Fujisawa,
Kunimasa Saitoh
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.411769
Subject(s) - broadband , wavefront , optics , materials science , silicon , multiplexing , wavelength division multiplexing , optoelectronics , electronic engineering , computer science , wavelength , physics , engineering
A broadband and compact TE0-TE1 mode converter for a mode division multiplexing system designed using a wavefront matching method is realized. We present the first experimental demonstration of a silicon waveguide device designed by a wavefront matching method. In order to achieve broadband operation of the silicon mode converter, seven wavelengths are considered in its optimization process. The designed silicon mode converter is fabricated via a standard complementary metal-oxide-semiconductor technology, which enables low-cost mass production. Measurements performed using the fabricated mode converter correlate strongly with the calculated results.