Optical Review

, Volume 2, Issue 6, pp 401–403 | Cite as

Asymmetric Colliding-Pulse Mode-Locking in InGaAsP Semiconductor Lasers

  • Takanori Shimizu
  • Xinglong Wang
  • Hiroyuki Yokoyama


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.

Key words

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


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Copyright information

© The Optical Society of Japan 1995

Authors and Affiliations

  • Takanori Shimizu
    • 1
  • Xinglong Wang
    • 1
  • Hiroyuki Yokoyama
    • 1
  1. 1.Opto-Electronics Research LaboratoriesNEC CorporationTsukubaJapan

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