Photonic chip based tunable and reconfigurable narrowband microwave photonic filter using stimulated Brillouin scattering
Date
2012-08-01
Authors
Byrnes, Adam
Pant, Ravi
Li, Enbang
Poulton, Christopher G
Fan, Shanhui
Madden, Steve
Luther-Davies, Barry
Eggleton, Benjamin J
Choi, Duk-Yong
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America
Abstract
We report the first demonstration of a photonic chip based dynamically reconfigurable, widely tunable, narrow pass-band, high Q microwave photonic filter (MPF). We exploit stimulated Brillouin scattering (SBS) in a 6.5 cm long chalcogenide (As2S3) photonic chip to demonstrate a MPF that exhibited a high quality factor of ~520 and narrow bandwidth and was dynamically reconfigurable and widely tunable. It maintained a stable 3 dB bandwidth of 23 ± 2MHz and amplitude of 20 ± 2 dB over a large frequency tuning range of 2-12 GHz. By tailoring the pump spectrum, we reconfigured the 3 dB bandwidth of the MPF from ~20 MHz to ~40 MHz and tuned the shape factor from 3.5 to 2 resulting in a nearly flat-topped filter profile. This demonstration represents a significant advance in integrated microwave photonics with potential applications in on-chip microwave signal processing for RADAR and analogue communications.
Description
Keywords
photonic chip, stimulated Brillouin scattering, microwave photonic filter, analogue communications, RADAR
Citation
Collections
Source
Optics Express.20.17 (2012):18836-18845
Type
Journal article
Book Title
Entity type
Access Statement
License Rights
Restricted until
Downloads
File
Description