Optical return loss detecting device

Details Optical return loss detecting device Optical return loss detecting device

2007-06-05

2007-06-05

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

C356S073100, C356S460000, C356S461000, C356S462000, C356S463000, C356S464000, C356S465000, C356S466000

Reexamination Certificate

active

10892117

ABSTRACT:
An optical return loss detecting device is provided for measuring the optical return loss (ORL) of a device under test (DUT). The detecting device comprises a light source, an optical isolator connected to the light source for preventing reflected light by the DUT entering the light source, a first optical coupler connected to the isolator, a second optical coupler connected to the first coupler and the DUT respectively, and a module communicating with the second coupler for performing test and calculation functions thereof.

REFERENCES:
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patent: 6111676 (2000-08-01), Lemus et al.
patent: 6580498 (2003-06-01), Harley
patent: 6810210 (2004-10-01), Veilleux
patent: 7016024 (2006-03-01), Bridge et al.
patent: 02229282.9 (2003-03-01), None
patent: 02159350.7 (2003-05-01), None

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