Working Paper Article Version 1 This version is not peer-reviewed

Photonic Radio Frequency and Microwave Channelizer with 90 Channels Based on a Kerr Microcomb

Version 1 : Received: 23 March 2020 / Approved: 26 March 2020 / Online: 26 March 2020 (02:19:45 CET)

How to cite: Xu, X.; tan, M.; Wu, J.; Boes, A.; Nguyen, T.G.; Chu, S.T.; Little, B.E.; Morandotti, R.; Mitchell, A.; Moss, D.J. Photonic Radio Frequency and Microwave Channelizer with 90 Channels Based on a Kerr Microcomb. Preprints 2020, 2020030380 Xu, X.; tan, M.; Wu, J.; Boes, A.; Nguyen, T.G.; Chu, S.T.; Little, B.E.; Morandotti, R.; Mitchell, A.; Moss, D.J. Photonic Radio Frequency and Microwave Channelizer with 90 Channels Based on a Kerr Microcomb. Preprints 2020, 2020030380

Abstract

We report a broadband radio frequency (RF) channelizer with up to 92 channels using a coherent microcomb source. A soliton crystal microcomb, generated by a 49 GHz micro-ring resonator (MRR), is used as a multi-wavelength source. Due to its ultra-low comb spacing, up to 92 wavelengths are available in the C band, yielding a broad operation bandwidth. Another high-Q MRR is employed as a passive optical periodic filter to slice the RF spectrum with a high resolution of 121.4 MHz. We experimentally achieve an instantaneous RF operation bandwidth of 8.08 GHz and verify RF channelization up to 17.55 GHz via thermal tuning. Our approach is a significant step towards the monolithically integrated photonic RF receivers with reduced complexity, size, and unprecedented performance, which is important for wide RF applications ranging from broadband analog signal processing to digital-compatible signal detection.

Keywords

microwave photonic; signal channelization; integrated optical frequency comb

Subject

Engineering, Electrical and Electronic Engineering

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.