Spectral equalizer for multiplexed channels

Details Spectral equalizer for multiplexed channels Spectral equalizer for multiplexed channels

1998-01-14

2000-10-31

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359124, 359130, 359161, 359176, 359341, H04B 1016

Patent

active

061411302

ABSTRACT:
An optical element having a periodically varying spectral response is used to flatten the spectral amplitudes within each of a group of multiplexed channels having different predetermined central wavelengths with uneven spectral amplitudes peaked around the central wavelengths. Spectral equalization is achieved by having the amplitude valleys of the spectral response aligned individually with the different central wavelengths. The optical element comprises an optical cavity, which forms part of a low-finesse Fabry-Perot etalon.

REFERENCES:
patent: 4861136 (1989-08-01), Stone et al.
patent: 5557468 (1996-09-01), Ip
patent: 5880874 (1999-03-01), Shibuya et al.
NT& T&T prefilters multiplexer with asymmetric Mach Zehnder Okamoto et al IEEE PTL, Mar. 1996.

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