MWS drift feedback compensator using VOA and input power...

Details MWS drift feedback compensator using VOA and input power... MWS drift feedback compensator using VOA and input power...

2011-01-04

2011-01-04

Singh, Dalzid (Department: 2613)

Optical communications

Diagnostic testing

Determination of communication parameter

C398S094000, C398S185000, C398S193000, C398S197000, C398S198000

Reexamination Certificate

active

07865079

ABSTRACT:
The invention relates to a compensator of attenuation drift in an optical multi-wavelength switch (MWS) which uses input signal amplitude dither and external VOA dither cancellation to determine relative position of MEMS micro mirror hence indirectly determining attenuation level.

REFERENCES:
patent: 6549699 (2003-04-01), Besler et al.
patent: 6625340 (2003-09-01), Sparks et al.
patent: 6671085 (2003-12-01), So et al.
patent: 7634196 (2009-12-01), Gerstel et al.
patent: 2005/0168806 (2005-08-01), Maeda et al.
patent: 2008/0080865 (2008-04-01), Muro et al.
patent: 2008/0181612 (2008-07-01), Mills et al.

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