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Mitigation of carrier induced optical bistability in silicon ring resonators

Jeyaselvan, V and Selvaraja, SK (2021) Mitigation of carrier induced optical bistability in silicon ring resonators. In: Optics Communications, 493 .

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Official URL: https://doi.org/10.1016/j.optcom.2021.127021


We present a detailed study of electrical and optical generated free carrier on the spectral characteristics of a silicon microring modulator. The spectral distortion generated due to thermal and free carriers is presented, and the mechanism for mitigation is also presented. We observed that two-photon induced nonlinearity could be addressed by operating the modulator at suitable bias points. Furthermore, by applying small-signal drive the spectral distortion can be restored. We also present the effect of optical power and drive signal limit on the spectral characteristics. The study allows one to identify suitable device performance and operating conditions to utilize silicon ring modulator for optical signal processing. © 2021

Item Type: Journal Article
Publication: Optics Communications
Publisher: Elsevier B.V.
Additional Information: The copyright for this article belongs to Authors
Keywords: Light modulators; Optical bistability; Optical resonators; Optical signal processing; Optical switches; Photons; Silicon, Bi-stability; Carrier induced; Free carriers; Nonlinear effect; Optical-; Ring resonator; Silicon ring resonator; Spectral characteristics; Spectral distortions; Two photon absorption, Two photon processes
Department/Centre: Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited: 15 Jul 2021 10:43
Last Modified: 15 Jul 2021 10:43
URI: http://eprints.iisc.ac.in/id/eprint/68771

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