Monitoring power in optical networks

Details Monitoring power in optical networks Monitoring power in optical networks

2005-05-24

2005-05-24

Dunn, Drew A. (Department: 2872)

Optical waveguides

With optical coupler

Input/output coupler

C385S033000, C385S039000, C385S074000, C385S088000, C385S093000

Reexamination Certificate

active

06898347

ABSTRACT:
An optical network may include a detector for detecting the power of each of a plurality of channels of a wavelength division multiplexed optical signal in one embodiment of the present invention. Each channel may be conveyed to an interface underneath a detector by way of a core formed in the substrate. The interface may include a trench with one side surface angled to form a reflector to reflect light upwardly to be detected by the detector. The trench may be filled with a convex microlens.

REFERENCES:
patent: 5195150 (1993-03-01), Stegmueller et al.
patent: 5335243 (1994-08-01), Kubena et al.
patent: 5987202 (1999-11-01), Gruenwald et al.
patent: 20030161603 (2003-08-01), Nadeau et al.

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