Four-wave-mixing-based silicon integrated optical isolator with dynamic non-reciprocity

Document Type

Journal Article

Publication Title

IEEE Photonics Technology Letters

Publisher

Institute of Electrical and Electronics Engineers Inc.

School

Electron Science Research Institute

RAS ID

24389

Comments

Wang, K., Gao, S., Wang, Y., Nirmalathas, A., Lim, C., Alameh, K., & Skafidas, E. (2016). Four-wave-mixing based silicon integrated optical isolator with dynamic non-reciprocity. IEEE Photonics Technology Letters, 28(16), 1739-1742. Available here

Abstract

Silicon photonics technology is a promising platform for photonics devices and system integration. However, due to the time-reversal symmetry, realizing silicon integrated isolators is still challenging. In this letter, an optical isolator based on the four-wave-mixing effect on silicon photonic integrated circuit platform is proposed and experimentally demonstrated. Different from typical nonlinear optical effect-based silicon integrated isolators, which can only be operated in either forward or backward directions (but not both), the isolator proposed here can be operated in both forward and backward directions simultaneously. The fundamental dynamic reciprocity limitation is overcome by a non-reciprocal wavelength conversion and wavelength filtering methodology. The fabricated silicon integrated isolator demonstrates an isolation ratio of >11.3 dB, and a 3-dB operational bandwidth exceeding 300 GHz. The insertion loss is© 2016 IEEE.

DOI

10.1109/LPT.2016.2565460

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