Thermally reconfigurable loss in a passive optical cavity

Dash, A and Mere, V and Selvaraja, SK and Naik, AK (2021) Thermally reconfigurable loss in a passive optical cavity. In: 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, 21-25 jun 2021, Munich.

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Abstract

Thermo-optic effect is the simplest and most cost-effective method for reconfiguring an optical cavity, but fails to tune the optical loss in an ordinary cavity. By embedding an interferometer within an optical cavity, we demonstrate thermo-optic tuning of the quality factor from 3000 to 10000 and extinction ratio from ~0 dB to 25 dB in a completely passive silicon micro-ring resonator. This is an important step towards realizing cost-effective reconfigurable photonic devices in purely passive waveguide platforms. © 2021 IEEE.

Item Type:	Conference Paper
Publication:	2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Optical resonators; Photonic devices, Cost-effective methods; Embeddings; Extinction ratios; Microring Resonator (MRR); Optical cavities; Quality factors; Reconfigurable; Simple++; Thermo-optics effect; Thermooptic tuning, Cost effectiveness
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	28 Nov 2021 06:43
Last Modified:	28 Nov 2021 06:43
URI:	http://eprints.iisc.ac.in/id/eprint/70436

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