Si3N4 ring resonator-based microwave photonic notch filter with an ultrahigh peak rejection
Optics
2015-06-16 v1
Abstract
We report a simple technique in microwave photonic (MWP) signal processing that allows the use of an optical filter with a shallow notch to exhibit a microwave notch filter with anomalously high rejection level. We implement this technique using a low-loss, tunable Si3N4 optical ring resonator as the optical filter, and achieved an MWP notch filter with an ultra-high peak rejection > 60 dB, a tunable high resolution bandwidth of 247-840 MHz, and notch frequency tuning of 2-8 GHz. To our knowledge, this is a record combined peak rejection and resolution for an integrated MWP filter.
Keywords
Cite
@article{arxiv.1308.2846,
title = {Si3N4 ring resonator-based microwave photonic notch filter with an ultrahigh peak rejection},
author = {David Marpaung and Blair Morrison and Ravi Pant and Chris Roeloffzen and Arne Leinse and Marcel Hoekman and Rene Heideman and Benjamin J. Eggleton},
journal= {arXiv preprint arXiv:1308.2846},
year = {2015}
}
Comments
8 pages, 5 figures