Monitor unit for monitoring an optical waveguide

Details Monitor unit for monitoring an optical waveguide Monitor unit for monitoring an optical waveguide

1994-04-15

1996-01-16

Williams, Hezron E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359110, G08B 100

Patent

active

054852960

ABSTRACT:
A monitor unit for detecting physical interference of a communications fibre in a transmission system includes a monitor circuit coupled to the communications fibre. A portion of a signal being transmitted along the communications fibre is coupled out of the fibre and into the monitor unit. A filter allows only one of two orthogonal polarization field components to pass through it to the monitor circuit. By detecting fluctuations in the polarization state of the filtered optical signal, the monitor circuit allows the detection of external influences to be determined.

REFERENCES:
patent: 3761716 (1973-09-01), Kapron et al.
patent: 4366565 (1982-12-01), Herskowitz
patent: 4381137 (1983-04-01), Berg et al.
patent: 4435849 (1984-03-01), Ilgner et al.
patent: 4475789 (1984-10-01), Kahn
patent: 4546345 (1985-10-01), Naito
patent: 4560246 (1985-12-01), Cotter
patent: 4592043 (1986-03-01), Williams
patent: 4652076 (1987-03-01), Unger
patent: 4765738 (1988-08-01), Henmi
patent: 4942623 (1990-07-01), Asawa et al.
patent: 5003623 (1991-03-01), Asawa
patent: 5109443 (1992-04-01), Hill et al.
patent: 5223967 (1993-06-01), Udd
patent: 5274488 (1993-12-01), Udd

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