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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 11 — Jun. 1, 2012
  • pp: 1992–1994

Transient reflectance spectra of adaptive filters based on dynamic population gratings

Pan Xu, Zhengliang Hu, Nuan Jiang, Lina Ma, and Yongming Hu  »View Author Affiliations


Optics Letters, Vol. 37, Issue 11, pp. 1992-1994 (2012)
http://dx.doi.org/10.1364/OL.37.001992


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Abstract

We propose a novel and practical method to exactly measure the transient reflectance spectra (TRS) of the adaptive filters based on dynamic population gratings. The modulating signals applied to the laser source play an important role. We specially designed a train of triangular amplitude modulated pulses with a small duty to modulate the laser frequency, and then the TRS was obtained from the grating responses to this pulse train. The measured half-zero-point bandwidths of the filter with and without 2.6  m cavity length are 20 and 60 MHz, respectively. Our research also indicates that the relatively high input power and a short cavity length may enhance the antiperturbation ability of lasers.

© 2012 Optical Society of America

OCIS Codes
(060.2410) Fiber optics and optical communications : Fibers, erbium
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(190.7070) Nonlinear optics : Two-wave mixing

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 4, 2012
Revised Manuscript: February 25, 2012
Manuscript Accepted: February 26, 2012
Published: May 30, 2012

Citation
Pan Xu, Zhengliang Hu, Nuan Jiang, Lina Ma, and Yongming Hu, "Transient reflectance spectra of adaptive filters based on dynamic population gratings," Opt. Lett. 37, 1992-1994 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-11-1992

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