Photonic single sideband RF generator based on an integrated optical micro-ring resonator

TL;DR

This paper presents an integrated optical micro-ring resonator capable of generating narrowband RF single sideband signals with large dynamic tuning range, suitable for optical communications.

Contribution

It introduces a dual-polarization-mode high-Q microring resonator for orthogonally polarized RF SSB generation and dual-channel equalization in the optical communication band.

Findings

Operates at 16.6 GHz and 32.2 GHz frequencies.

Achieves over 55 dB dynamic tuning range.

Enables narrowband RF operation with dual-channel equalization.

Abstract

We demonstrate narrowband orthogonally polarized optical RF single sideband generation as well as dual-channel equalization based on an integrated dual-polarization-mode high-Q microring resonator. The device operates in the optical communications band and enables narrowband RF operation at either 16.6 GHz or 32.2 GHz, determined by the free spectral range and TE/TM mode interval in the resonator. We achieve a very large dynamic tuning range of over 55 dB for both the optical carrier-to-sideband ratio and the dual-channel RF equalization.