Wavelength Tunability of All-Optical Clock-Recovery Based on Quantum-Dash Mode-Locked Laser Diode Under Injection of a 40-Gb/s NRZ Data Stream

Wavelength tunability of an all-optical clock recovery operation based on a quantum-dash mode-locked Fabry-Pérot laser diode is experimentally investigated. Synchronization of the device to the injection of 40-Gb/s nonreturn-to-zero (NRZ) incoming data is assessed by analyzing both the carrier-to-n...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 23; no. 9; pp. 531 - 533
Main Authors Parra-Cetina, J, Latkowski, S, Maldonado-Basilio, R, Landais, P
Format Journal Article
LanguageEnglish
Published IEEE 01.05.2011
Subjects
All-optical clock recovery
Clocks
Fabry-Pérot laser
Laser mode locking
mode-locked laser
nonreturn-to-zero (NRZ)
Optical amplifiers
Optical attenuators
Optical fibers
quantum dash
Semiconductor lasers
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Summary:Wavelength tunability of an all-optical clock recovery operation based on a quantum-dash mode-locked Fabry-Pérot laser diode is experimentally investigated. Synchronization of the device to the injection of 40-Gb/s nonreturn-to-zero (NRZ) incoming data is assessed by analyzing both the carrier-to-noise ratio and the linewidth of the 40-GHz beat-tones measured at the mode-locked laser output. Under optical injection, beat-tone linewidths below 10 Hz are measured. Recovered clock pulses featuring a width of 1.6 ps are obtained irrespective of the wavelength detuning between the laser spectra and the optical carrier of the incoming data stream.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2011.2111366