Abstract
We show that any optical pulse train recovers its original waveform after passing through a group velocity dispersion (GVD) device when the total GVD value of the device is equal to an integral multiple of , where is the repetition rate of the optical pulse train. In addition, we detail our proposed GVD measurement method, or optical phase-modulation (PM) method, which utilizes a sinusoidally PM continuous wave (CW) light as a probe light. The total GVD of a device under test (DUT) is derived by using a very simple equation, , where is the smallest modulation frequency at which the sinusoidally PM light becomes CW light again after passing through the DUT.
© 2010 Optical Society of America
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