Hilbert Transform based Quadrature Hybrid RF Photonic Coupler via a Micro-Resonator Optical Frequency Comb Source

2015/12/06 by Thach G. Nguyen, Mehrdad Shoeiby, Sai T. Chu +4 · 2 citations
Physics and Astronomy · #physics.optics

paper · pdf · doi:10.1364/oe.23.022087

published as Optics Express Volume 23 Issue 17 Pages 22087-22097 (2015) · 11 pages, 8 figures, 38 references

arxiv created 2015/12/06 · arxiv updated 2015/12/08

Abstract

We demonstrate a photonic RF Hilbert transformer for broadband microwave in-phase and quadrature-phase generation based on an integrated frequency optical comb, generated using a nonlinear microring resonator based on a CMOS compatible, high-index contrast, doped-silica glass platform. The high quality and large frequency spacing of the comb enables filters with up to 20 taps, allowing us to demonstrate a quadrature filter with more than a 5-octave (3 dB) bandwidth and an almost uniform phase response.

Cited by

• High-order Radio Frequency Differentiation via Photonic Signal Processing with an Integrated Micro-resonator Kerr Optical Frequency Comb Source
• Microwave and RF Applications for Micro-resonator based Frequency Combs

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