COMPOSITE TYPE LIGHT DISPERSION COMPENSATING ELEMENT AND LIGHT DISPERSION COMPENSATING METHOD

摘要

PROBLEM TO BE SOLVED: To solve shortcomings of a broadband configuration, having a large connection loss and a large geometry resulting in causing a high cost, with respect to a compensating method and element to solve the occurrence of wavelength dispersion in signals transmitted through optical fibers in terms of communications at a communications bit rate of 10 Gbps or more, and particularly optical communications at 40 Gbps or more in the past.

SOLUTION: A composite type light dispersion compensating element comprising series connection of a plurality of light dispersion compensating elements employs at least a pair of the light dispersion compensating elements deposited with their light incident surfaces opposite to each other by reflecting signal lights between the incident surfaces deposited opposite to each other so as to carry out dispersion compensation and locating at least one reflector corresponding to a pair of the light dispersion compensating elements deposited opposite to each other so as to attain a low loss over a wide bandwidth.

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