Optical switching assembly for testing fiber optic devices

Details Optical switching assembly for testing fiber optic devices Optical switching assembly for testing fiber optic devices

1996-10-01

1998-06-09

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

G01N 2159, G01N 2184

Patent

active

057643482

ABSTRACT:
Fiber optic devices are tested using an optical switching assembly having two optical switches and optical junctions, each optical junction connects an optical fiber from each of the switches to an external optical fiber lead. Each switch is connected to an optical device, for example a laser or a detector, and selectively establishes an optical path between the corresponding optical device and one of the junctions. Hence, a fiber optic device may be tested by connecting the ends of the fiber optic device to respective junction leads, and selectively switching the optical paths to determine the different optical characteristics of the fiber optic device. Calibration devices may also be connected to the leads of unused junctions to check for calibration accuracy and to detect variation in optical performance over time.

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