40 Gbit/s all-optical clock recovery using a two-section gain-coupled DFB laser and semiconductor optical amplifier

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40 Gbit/s all-optical clock recovery using a two-section gain-coupled DFB laser and semiconductor optical amplifier

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40 Gbit/s wavelength and polarisation insensitive all-optical clock recovery using a two-section distributed feedback (DFB) laser has been demonstrated. The polarisation sensitivity of the two-section DFB laser was solved by converting incoming data onto a local laser through cross-gain modulation using a semiconductor optical amplifier. The scheme has a sensitivity of –13 dBm.

Inspec keywords: electro-optical modulation; time division multiplexing; semiconductor optical amplifiers; optical communication equipment; sensitivity; distributed feedback lasers; synchronisation

Other keywords: local laser; polarisation sensitivity; Gbit/s all-optical clock recovery; sensitivity; two-section DFB laser; semiconductor optical amplifier; incoming data; two-section gain-coupled DFB laser; 40 Gbit/s; polarisation insensitive all-optical clock recovery; Gbit/s wavelength all-optical clock recovery; two-section distributed feedback laser; cross-gain modulation

Subjects: Semiconductor lasers; Multiplexing and switching in optical communication; Laser beam modulation, pulsing and switching; mode locking and tuning; Optical communication equipment

References

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    2. 2)
      • H.J. Lee , H.G. Kim , J.Y. Choi , H.K. Lee . All-optical clockrecovery from NRZ data with simple NRZ-to-PRZ converter based on self-phasemodulation of semiconductor optical amplifier. Electron. Lett. , 12 , 989 - 990
    3. 3)
      • Mao, W., Wang, X., Al-mumin, M., Li, G.: `40 Gb/s all-opticalclock recovery using self-pulsation DFB lasers', Proc. OFC 2000, 2000, p. 79–80.
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      • R. Hui , A. D'Ottavi , A. Mecozzi , P. Spano . Injection locking in distributed feedback semiconductor lasers. IEEE J. Quantum Electron. , 6 , 1688 - 1695
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      • X. Wang , G. Li , J. Hong , S.A. Pappert . Spatiotemporal dynamics and high-frequency self-pulsations in two-sectiondistributed feedback lasers. J. Opt. Soc. Am. B , 11 , 2030 - 2039
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      • B. Sartorius , M. Mohrle , U. Feiste . 12–64 GHz continuous frequency tuningself-pulsating 1.55 µm multiquantum-well DFB lasers. IEEE J. Sel. Top. Quantum Electron. , 2 , 535 - 538
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