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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 9 — May. 1, 2009
  • pp: 1318–1320

Narrowband tunable photonic notch filter

A. A. Savchenkov, W. Liang, A. B. Matsko, V. S. Ilchenko, D. Seidel, and L. Maleki  »View Author Affiliations

Optics Letters, Vol. 34, Issue 9, pp. 1318-1320 (2009)

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We propose a technique for realization of a high-contrast, tunable, low-insertion-loss notch filter using polarization selectivity of whispering-gallery-mode resonators. We demonstrate a 10 MHz filter with 5.5 dB insertion loss and 45.5 dB of in-band rejection. The measured rejection value is limited by the finite ( 3 kHz ) linewidth of our laser. We show that the filter can potentially have tunable bandwidth without significant rejection modification.

© 2009 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(140.4780) Lasers and laser optics : Optical resonators
(230.5750) Optical devices : Resonators
(070.2615) Fourier optics and signal processing : Frequency filtering
(070.5753) Fourier optics and signal processing : Resonators

ToC Category:
Optical Devices

Original Manuscript: February 10, 2009
Revised Manuscript: March 17, 2009
Manuscript Accepted: March 23, 2009
Published: April 20, 2009

A. A. Savchenkov, W. Liang, A. B. Matsko, V. S. Ilchenko, D. Seidel, and L. Maleki, "Narrowband tunable photonic notch filter," Opt. Lett. 34, 1318-1320 (2009)

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