Optical frequency filter

Optical communications – Multiplex – Wavelength division or frequency division

Reexamination Certificate

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C359S723000, C359S885000

Reexamination Certificate

active

07127172

ABSTRACT:
The present invention relates to an optical signal shaping device such as an optical filter having a profile such that transmission of light through the device varies as a function of frequency over a selected bandwidth. The optical signal shaping device of the present invention includes a frequency dependent disperser that disperses the input optical signal to form a dispersed signal having a plurality of frequencies, a frequency selective modulator that modulates at least one of the plurality of frequencies and a frequency dependent combiner that combines the frequencies to form a modulated output signal.

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