Spectral power equalizer for wavelength-multiplexed optical...

Details Spectral power equalizer for wavelength-multiplexed optical... Spectral power equalizer for wavelength-multiplexed optical...

H - Electricity

04

B

H04B 10/18 (2006.01) G02F 1/01 (2006.01) G02F 1/25 (2006.01)

Patent

CA 2364299

A method and apparatus is described for controlling the attenuation of multiple wavelengths signals propagating in an optical fiber, that may have a time-dependent power in each signal, to provide an output signal having a desired attenuated power in each of the multiple signals. An equalizer may be used that has various optical elements to focus and disperse light, such as a concave diffraction grating and a modulator array having modulators disposed on a concave surface. The equalizer may also be coupled to various components such as a circulator or thermally expanded core fibers.

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