Inherently Mode-Hop-Free Distributed Bragg Reflector (DBR) Laser Array

Naoki Fujiwara*, Takaaki Kakitsuka, Mitsuteru Ishikawa, Fumiyoshi Kano, Hiroshi Okamoto, Yoshihiro Kawaguchi, Yasuhiro Kondo, Yuzo Yoshikuni, Yuichi Tohmori

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


An inherently mode-hop-free tuning of 4.5 nm was achieved with a short-active-region distributed Bragg reflector (DBR) laser. The DBR laser contains no phase-adjustment electrode, which greatly simplifies the tuning. Fast tuning of several nanoseconds and error-free operation for 2.5-Gbit/s direct modulation were also observed. A 4-ch array of short-active-region DBR lasers achieved wavelength tuning of 12.5 nm.

Original languageEnglish
Pages (from-to)1132-1137
Number of pages6
JournalIEEE Journal on Selected Topics in Quantum Electronics
Issue number5
Publication statusPublished - 2003 Sept
Externally publishedYes


  • Distributed Bragg reflector laser
  • Mode-hop-free tuning
  • Short-active-region

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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