40-GHz dual-mode-locked widely tunable sampled-grating DBR laser

@article{Johansson200540GHzDW,
  title={40-GHz dual-mode-locked widely tunable sampled-grating DBR laser},
  author={L. A. Johansson and Zhaoyang Hu and D. Blumenthal and L. Coldren and Y. A. Akulova and G. Fish},
  journal={IEEE Photonics Technology Letters},
  year={2005},
  volume={17},
  pages={285-287}
}
Generation of 40-GHz alternate-phase pulses is demonstrated using a dual-mode-locked sampled-grating distributed Bragg reflector laser. More than 10-dB extinction and >20-dB sidemode suppression ratio is measured over the >40-nm tuning range of the laser. Based on captured phase noise spectra, the timing jitter is estimated in the 0.35-0.41-ps range. The demonstrated dual-mode laser would form an attractive basis for an integrated 40-Gb/s return-to-zero transmitter. 

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