We report a 40 Gb/s burst mode optical clock
recovery (BM-OCR) by injection locking a dynamically switched
quantum dash mode-locked laser diode. We investigated in detail
the performance of the BM-OCR operation after 52 km transmission. High quality BM-OCR after transmission is achieved
with a locking time of ∼25 ns, and 40 GHz recovered packet
clock with 46 dB signal to noise floor suppression and 64 fs
timing jitter (100 Hz to 1 MHz). The reported BM-OCR has a
continuous tuning wavelength range from 1535 to 1560 nm, power
dynamic range of no less than 6.7 dB. The frequency deviation
tolerance of the BM-OCR is within −427 to +226 ppm at
39.813 Gb/s (OC-768 standard line rate), which is compliant with
the specifications in the IEEE 40/100-Gb/s Ethernet standard.
These results indicate the promising future applications of the
proposed BM-OCR in high speed burst mode optical receiver