Optical transmission paths and methods of measuring their optica

Details Optical transmission paths and methods of measuring their optica Optical transmission paths and methods of measuring their optica

1992-06-09

1993-11-16

Ullah, Akm E.

Optical waveguides

Optical fiber bundle

25022712, 356 5, 385 12, G02B 600, G02B 636

Patent

active

052631095

ABSTRACT:
An optical transmission time measuring device for an optical transmission path includes an optical bidirectional coupler having at least two input ports and at least two output ports. A pulse light source is connected to one of the input ports of the coupler and photodetector is connected to another one of the input ports. A timing control unit is used to time the pulse light source and the photodetector. A first optical connector is connected to one of the output ports for connecting a reference optical waveguide thereto and a second optical connector is connected to another one of the output ports for connecting a measured optical waveguide thereto.

REFERENCES:
patent: 3881976 (1975-05-01), Jones
patent: 3940608 (1976-02-01), Kissinger et al.
patent: 4062618 (1977-12-01), Steensma
patent: 4249266 (1981-02-01), Nakamori
patent: 4781427 (1988-11-01), Husbands et al.
patent: 4911515 (1990-03-01), So et al.

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