Optically tunable fiber grating transmission filters

Optically tunable fiber grating transmission filters

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 0.1 pi/mW is obtained without...

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Veröffentlicht in:Optics letters 2003-12, Vol.28 (24), p.2446-2448
Hauptverfasser: Lai, Yicheng, Zhang, W, Zhang, L, Williams, J A R, Bennion, I
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Sprache:eng
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Zusammenfassung: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 0.1 pi/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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.28.002446