Systems and methods for providing a three-port...

Details Systems and methods for providing a three-port... Systems and methods for providing a three-port...

2007-08-06

2010-10-05

Phan, Hanh (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S083000, C398S084000, C398S079000, C398S087000, C385S024000, C385S037000

Reexamination Certificate

active

07809272

ABSTRACT:
The technology described herein provides a low-cost three-port reconfigurable optical add-drop multiplexer (ROADM) with an improved edge profile and add/drop flexibility. The technology described herein further provides a tunable spectral filter utilizing two sets of gratings and lenses and a two-axis micro-electro-mechanical system (MEMS) mirror with a selectively shaped cut-out disposed within the middle of the collimated optical path.

REFERENCES:
patent: 6751372 (2004-06-01), Feuer et al.
patent: 7657181 (2010-02-01), Terai et al.

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