Control method and device for optical filter, and optical...

Details Control method and device for optical filter, and optical... Control method and device for optical filter, and optical...

2005-05-17

2005-05-17

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

With optical coupler

Plural

C385S015000, C385S031000, C385S039000, C398S079000, C398S082000, C398S093000, C398S094000, C398S095000

Reexamination Certificate

active

06895141

ABSTRACT:
In the control method for the optical filter according to the present invention, WDM signal light obtained by wavelength division multiplexing a plurality of optical signals having different wavelengths is supplied to an optical filter to obtain output WDM signal light including a part of the plurality of optical signals. The output WDM signal light is converted into an electrical signal per wavelength channel of the output WDM signal light. Then, the optical filter is controlled according to the electrical signal so that the characteristic of the optical filter becomes stable.

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