Loop status monitor for determining the amplitude of the signal

Details Loop status monitor for determining the amplitude of the signal Loop status monitor for determining the amplitude of the signal

1997-06-30

1999-06-22

Ngo, Hung N.

Optical waveguides

With optical coupler

Plural

359130, G02B 628

Patent

active

059150521

ABSTRACT:
A loop status monitor for determining the magnitude of the power output of each signal component of a multi-wavelength optical beam includes a dense wavelength division demultiplexing arrayed waveguide and a detector array. The detector elements are butt-coupled to each respective output of the waveguide to reduce insertion loss and cost. The detector array is formed of planar silica material having a plurality of precision ion implanted regions that separate the optical beam into its respective signal components. The signal components are directed to a corresponding detector element of the detector array. Each detector element includes a photodiode that converts the optical beam to an electrical signal indicative of the amplitude of the power of the channel.

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