论文信息 - A novel frequency-offset monitoring technique in direct-detection DPSK systems

A novel frequency-offset monitoring technique in direct-detection DPSK systems

We propose and demonstrate a novel technique to monitor the frequency offset between the optical signal and delay interferometer in direct-detection DPSK systems. The monitoring range and accuracy of the proposed technique were measured to be /spl plusmn/2 GHz and /spl sim/1 MHz, respectively.

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