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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 17 — Aug. 13, 2012
  • pp: 18836–18845

Photonic chip based tunable and reconfigurable narrowband microwave photonic filter using stimulated Brillouin scattering

Adam Byrnes, Ravi Pant, Enbang Li, Duk-Yong Choi, Christopher G. Poulton, Shanhui Fan, Steve Madden, Barry Luther-Davies, and Benjamin J. Eggleton  »View Author Affiliations

Optics Express, Vol. 20, Issue 17, pp. 18836-18845 (2012)

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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.

© 2012 OSA

OCIS Codes
(190.2640) Nonlinear optics : Stimulated scattering, modulation, etc.
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Nonlinear Optics

Original Manuscript: June 13, 2012
Revised Manuscript: July 23, 2012
Manuscript Accepted: July 30, 2012
Published: August 1, 2012

Adam Byrnes, Ravi Pant, Enbang Li, Duk-Yong Choi, Christopher G. Poulton, Shanhui Fan, Steve Madden, Barry Luther-Davies, and Benjamin J. Eggleton, "Photonic chip based tunable and reconfigurable narrowband microwave photonic filter using stimulated Brillouin scattering," Opt. Express 20, 18836-18845 (2012)

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