Characteristics of a Chromatic Dispersion Measurement Method Using the Bidirectional Modulation of Optical Intensity Modulator

We had recently measured a chromatic dispersion of optical fiber and a time delay of chirped fiber grating based on a bidirectional modulation of an optical intensity modulator. In this paper, we analyze characteristics of the chromatic dispersion measurement method using a bidirectional modulation of an optical intensity modulator, and give a detailed explanation about the selection of measurement setup parameters to achieve an accurate measurement. We also propose modified measurement system to decrease relative intensity noise caused by the bidirectional transmission through a device under test