Apparatus for detecting cross-talk and method therefor

Details Apparatus for detecting cross-talk and method therefor Apparatus for detecting cross-talk and method therefor

2005-11-01

2005-11-01

Lee, Andrew H. (Department: 2877)

Optics: measuring and testing

By light interference

Spectroscopy

Reexamination Certificate

active

06961128

ABSTRACT:
An apparatus for detecting cross-talk and method therefore, wherein a first and a second output signal from a wavelength selective device are directed to be coincident upon a photodetector. A homodyne beat signal results from the coincidence of the first and the second output signal and the homodyne beat signal is used to measure wavelength drift.

REFERENCES:
patent: 4790655 (1988-12-01), Yamamoto et al.
patent: 5002395 (1991-03-01), Shah
patent: 5367396 (1994-11-01), Sotom et al.
patent: 0 818 859 (1998-01-01), None
patent: 57190387 (1982-11-01), None
patent: WO 01/73980 (2001-10-01), None

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