Method and apparatus for balancing the power of optical...

Details Method and apparatus for balancing the power of optical... Method and apparatus for balancing the power of optical...

2006-12-19

2006-12-19

Connelly-Cushwa, Michelle (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling structure

C398S068000, C398S083000

Reexamination Certificate

active

07151875

ABSTRACT:
A method and apparatus is provided for power balancing an optical signal wavelength to be added to an OADM having at least one drop port and at least one add port. The method begins by monitoring a power level of a first signal wavelength being dropped on the drop port and a power level of a second signal wavelength being added on the add port. The power level of the first signal wavelength is compared to the power level of the second signal wavelength. Based on the step of comparing, the optical attenuation is adjusted along the add port so that the power level of the second signal wavelength becomes substantially equal to the power level of the first signal wavelength.

REFERENCES:
patent: 6208441 (2001-03-01), Jones et al.
patent: 6208443 (2001-03-01), Liu et al.
patent: 6385362 (2002-05-01), Norwood
patent: 6429974 (2002-08-01), Thomas et al.
patent: 6721509 (2004-04-01), Xiao et al.
patent: 6885825 (2005-04-01), DeGrange et al.

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