Dispersion compensator

Details Dispersion compensator Dispersion compensator

H - Electricity

04

B

H04B 10/18 (2006.01)

Patent

CA 2363777

An object of this invention is to compensate group delay or group velocity dispersion. An optical circulator (12) outputs an optical signal (10) entered through its port A from its port B. A fiber collimator (14) makes the optical signal spread out from the port B of the optical circulator (12) into a collimated beam and applies it to a beam splitter (16). The beam splitter (16) is disposed at an angle of 45° to the optical axis . Around of the beam splitter (16), total reflection mirrors (18, 20, and 22) are disposed in three directions per angle of 90° except for the direction in which the fiber collimator (14) is disposed. The distance between the total reflection mirrors (18, 20, and 22) and the beam splitter (16) is adjustable.

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