Optical waveguides – With optical coupler – Plural
Patent
1992-07-23
1993-06-29
Healy, Brian
Optical waveguides
With optical coupler
Plural
385 31, 385 27, 359115, 359124, 359127, 359161, G02B 628, H04J 100
Patent
active
052241831
ABSTRACT:
A method and system for multiple WDM signal compensation compensates optical chromatic dispersion for a plurality of optical signals having predetermined frequencies and each traveling in an optical path associated with the wavelength division multiplexer that forms a multiplex optical signal from the plurality of optical signals. The invention first undercompensates the multiplex optical signal by a predetermined amount so that each of the optical signals has an associated residual optical chromatic dispersion. Then, either before or after undercompensating of the multiplexed optical signal each of the optical signals is individually compensated to remove therefrom the residual chromatic dispersion. The system and method permit simultaneous and independent control of optical dispersion at any desired wavelength, as well as selection of matching compensation for optical transmitters prior to installation. The result is an increase in the usable wavelength range of optical signals for WDM networks.
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Alcatel Network Systems, Inc.
Healy Brian
Kraft Dennis O.
Lutz Bruce C.
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