Asymmetric colliding-pulse mode-locking in ingaasp semiconductor lasers

Takanori Shimizu, Xinglong Wang, Hiroyuki Yokoyama

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


Asymmetric colliding-pulse mode-locking was successfully demonstrated in an InGaAsP laser. This laser had a single saturable absorber section located partway along the cavity length, and showed mode-locking operation at harmonics of the cavity roundtrip frequency. The method verified that optical pulse repetition up to subterahertz rates can be generated with nearly 1-mm-long mode-locked InGaAsP lasers.

Original languageEnglish
Pages (from-to)401-403
Number of pages3
JournalOptical Review
Issue number6
Publication statusPublished - 1995 Jan 1
Externally publishedYes


  • mode-locking
  • saturable absorption
  • semiconductor laser
  • ultrahigh speed
  • ultrashort light pulses

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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