Design of tunable thermo-optic C-band filter based on coated silicon slab

Hadar Pinhas, Dror Malka, Yossef Danan, Moshe Sinvani, Zeev Zalevsky

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Optical filters are required to have narrow band-pass filtering in the spectral C-band for applications such as signal tracking, sub-band filtering or noise suppression. These requirements lead to a variety of filters such as Mach-Zehnder interferometer inter-leaver in silica, which offer thermo-optic effect for optical switching, however, without proper thermal and optical efficiency. In this paper we propose tunable thermo-optic filtering device based on coated silicon slab resonator with increased Q-factor for the C-band optical switching. The device can be designed either for long range wavelength tuning of for short range with increased wavelength resolution. Theoretical examination of the thermal parameters affecting the filtering process is shown together with experimental results. Proper channel isolation with an extinction ratio of 20dBs is achieved with spectral bandpass width of 0.07nm.
Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XXVI
EditorsMarek Osinski, Yasuhiko Arakawa, Bernd Witzigmann
PublisherSPIE
ISBN (Electronic)9781510615373
DOIs
StatePublished - 2018
EventPhysics and Simulation of Optoelectronic Devices XXVI 2018 - San Francisco, United States
Duration: 29 Jan 20181 Feb 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10526
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferencePhysics and Simulation of Optoelectronic Devices XXVI 2018
Country/TerritoryUnited States
CitySan Francisco
Period29/01/181/02/18

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