論文

2018年1月1日

20-Gbit/s direct modulation of GaInAsP/InP membrane distributed-reflector laser with energy cost of less than 100 fJ/bit

Applied Physics Express
  • Takahiro Tomiyasu
  • ,
  • Daisuke Inoue
  • ,
  • Takuo Hiratani
  • ,
  • Kai Fukuda
  • ,
  • Nagisa Nakamura
  • ,
  • Tatsuya Uryu
  • ,
  • Tomohiro Amemiya
  • ,
  • Tomohiro Amemiya
  • ,
  • Nobuhiko Nishiyama
  • ,
  • Nobuhiko Nishiyama
  • ,
  • Shigehisa Arai
  • ,
  • Shigehisa Arai

11
DOI
10.7567/APEX.11.012704

© 2018 The Japan Society of Applied Physics. We demonstrated 20-Gbit/s direct modulation with a low energy cost of the membrane distributed-reflector (DR) laser whose static lasing characteristics were previously reported by Tomiyasu et al. in Appl. Phy. Express 10, 062702 (2017). As a small-signal modulation characteristic, a modulation current efficiency of 12 GHz/mA1/2was obtained. In 20-Gbit/s direct modulation using a non-return-to-zero 211- 1 word-length pseudorandom bit sequence signal, a clear eye opening with a bit-error rate of 6.4 × 10-10was obtained with a bias current of 1.06 mA and a bias voltage of 1.76 V, which resulted in a record low energy cost of 93 fJ/bit among membrane distributed-feedback (DFB) and DR lasers ever reported.

リンク情報
DOI
https://doi.org/10.7567/APEX.11.012704
Scopus
https://www.scopus.com/record/display.uri?eid=2-s2.0-85039982253&origin=inward
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85039982253&origin=inward