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Prescaled 6.3 GHz clock recovery from 50 Gbit/s TDM optical signal with 50 GHz PLL using four-wave mixing in a travelling-wave laser diode optical amplifier

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3 Author(s)
Kamatani, O. ; NTT Transmission Syst. Labs., Kanagawa ; Kawanishi, S. ; Saruwatari, M.

Successful 50 GHz operation of a phaselocked loop is demonstrated using four-wave mixing in a travelling-wave laser diode optical amplifier. A prescaled 6.3 GHz clock is recovered from a 50 Gbit/s TDM optical signal using the 50 GHz phase comparison output obtained as the crosscorrelation between a 50 Gbit/s optical signal and a short (<10 ps) 6.3 GHz optical clock pulse train in the generated four-wave-mixing light

Published in:

Electronics Letters  (Volume:30 ,  Issue: 10 )