Mitigation of carrier induced optical bistability in silicon ring resonators

OPTICS COMMUNICATIONS

卷:493

Article

Jeyaselvan, Vadivukkarasi^1,2  Selvaraja, Shankar Kumar¹ 

[1] Indian Inst Sci, Ctr Nano Sci & Engn, Bangalore, Karnataka, India

[2] Univ Southampton, Optoelect Res Ctr, Southampton, Hants, England

关键词: Nonlinear effects;    Two-photon absorption;    Optical bistability;    Ring resonator;   

DOI  :  10.1016/j.optcom.2021.127021

来源: Elsevier

【 摘 要 】

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.

【 授权许可】

Free