Real time wavelength monitoring circuit

Details Real time wavelength monitoring circuit Real time wavelength monitoring circuit

1998-05-01

2000-04-25

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359110, 359124, 359187, H04J 1402

Patent

active

060550783

ABSTRACT:
A real time multi-channel wavelength monitoring circuit for monitoring Waveguide Division Multiplexing communications networks (WDM) is disclosed. The monitoring circuit monitors the full wavelength of an input signal by providing center offset inputs into a Phased Array Waveguide Grating (PAWG). By providing center offset inputs to a PAWG the passband crossover point can be changed optimizing a different dynamic range and wavelength resolution.

REFERENCES:
patent: 4942568 (1990-07-01), Khoe et al.

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