Tunable holographic filter

Details Tunable holographic filter Tunable holographic filter

G - Physics

02

B

G02B 5/32 (2006.01) G02B 1/00 (2006.01) G02B 5/20 (2006.01) G02B 5/26 (2006.01) G02B 6/34 (2006.01) G02F 1/03 (2006.01)

Patent

CA 2402480

An optical add/drop filter (110) is formed using a hologram (115) which is tuned to a wavelength in an optical signal (100). The diffraction condition of the hologram may be varied to vary the in add or drop content.

Selon cette invention, un filtre optique (110) à addition/soustraction est formé au moyen d'un hologramme (115) et est accordé à une longueur d'onde dans un signal optique (100). L'état de diffraction de l'hologramme peut être modifié en fonction de la variation du contenu d'addition ou de soustraction.

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