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Optics Letters

Optics Letters


  • Vol. 28, Iss. 24 — Dec. 15, 2003
  • pp: 2446–2448

Optically tunable fiber grating transmission filters

Yicheng Lai, W. Zhang, L. Zhang, J. A. R. Williams, and I. Bennion  »View Author Affiliations

Optics Letters, Vol. 28, Issue 24, pp. 2446-2448 (2003)

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We propose and demonstrate single- and multiple-passband fiber grating transmission filters that are remotely tunable by exploitation of the optical pump-induced thermal effects in Er/Yb-codoped fiber sections. A repeatable, wavelength-independent induced phase shift of 0.1π/mW is obtained without hysteresis and anisotropic effects. A transmission extinction ratio of >23 dB with a 3-mW change in pump power is achieved.

© 2003 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(050.5080) Diffraction and gratings : Phase shift
(060.2340) Fiber optics and optical communications : Fiber optics components
(190.4870) Nonlinear optics : Photothermal effects

Yicheng Lai, W. Zhang, L. Zhang, J. A. R. Williams, and I. Bennion, "Optically tunable fiber grating transmission filters," Opt. Lett. 28, 2446-2448 (2003)

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