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Optical clock recovery at line rates via injection locking of a long cavity Fabry-Pe/spl acute/rot laser diode

We present a new scheme for realizing optical clock recovery by injection locking a long cavity Fabry-Pe/spl acute/rot laser diode. A 32.48-GHz optical clock with low level of timing jitter (0.38 ps) and high extinction ratio (23 dB) was recovered from a 32.48-Gb/s return-to-zero input optical data stream. The impact of the characteristics of the input signal such as the injected optical power and tunability of data rate on the measured radio-frequency power, timing jitter, and extinction ratio of the recovered clock signal has also been investigated.