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High extinction ratio and high-temperature 2.5-Gb/s floor-free 1.3-/spl mu/m transmission with a directly modulated quantum dot laser

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10 Author(s)
B. Dagens ; Alcatel Thales III-V Lab, Palaiseau, France ; A. Martinez ; J. -G. Provost ; D. Make
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For the first time with a directly modulated InAs-GaAs quantum-dot laser, high extinction ratio (up to 17 dB) and 25degC-85degC single-mode-fiber data floor-free transmissions are achieved at 2.5 Gb/s. Moreover, an interferometric technique showed a nearly constant Henry factor ~2 until a bias current six times the threshold current

Published in:

IEEE Photonics Technology Letters  (Volume:18 ,  Issue: 4 )