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Proceedings Paper

Microwave and RF applications for micro-resonator based frequency combs
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Paper Abstract

Photonic integrated circuits that exploit nonlinear optics in order to generate and process signals all-optically have achieved performance far superior to that possible electronically - particularly with respect to speed. We review the recent achievements based in new CMOS-compatible platforms that are better suited than SOI for nonlinear optics, focusing on radio frequency (RF) and microwave based applications that exploit micro-resonator based frequency combs. We highlight their potential as well as the challenges to achieving practical solutions for many key applications. These material systems have opened up many new capabilities such as on-chip optical frequency comb generation and ultrafast optical pulse generation and measurement. We review recent work on a photonic RF Hilbert transformer for broadband microwave in-phase and quadrature-phase generation based on an integrated frequency optical comb. The comb is 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.

Paper Details

Date Published: 1 March 2016
PDF: 10 pages
Proc. SPIE 9750, Integrated Optics: Devices, Materials, and Technologies XX, 97500H (1 March 2016); doi: 10.1117/12.2218883
Show Author Affiliations
Thach G. Nguyen, RMIT Univ. (Australia)
Mehrdad Shoeiby, RMIT Univ. (Australia)
Marcello Ferrera, Heriot-Watt Univ. (United Kingdom)
Alessia Pasquazi, Univ. of Sussex (United Kingdom)
Marco Peccianti, Univ. of Sussex (United Kingdom)
Sai T. Chu, City Univ. of Hong Kong (China)
Brent E. Little, Xi’an Institute of Optics and Precision Mechanics (China)
Roberto Morandotti, Institut National de la Recherche Scientifique (Canada)
Arnan Mitchell, RMIT Univ. (Australia)
David J. Moss, Swinburne Univ. of Technology (Australia)

Published in SPIE Proceedings Vol. 9750:
Integrated Optics: Devices, Materials, and Technologies XX
Jean-Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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