Monolithic passive mode-locking in single contact tapered lasers

K. A. Williams, Huw Summers, M. K Abd Rahman, J. Muller, F. R. Laughton, I. H. White, R. V. Penty, Z. Jiang, J. Sarma, I. Middlemast, J. D. Ralston

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


We report the monolithic passive mode-locking of a single contact tapered laser without a separate saturable absorber section. Pulsewidths of 850 fs have been achieved at a repetition rate of 116 GHz, with average powers of about 8 mW. The drive current range over which mode-locking is observed is enhanced compared with passive mode-locking in multisection lasers. The physical mechanisms believed to be responsible for the mode-locked operation arise directly from the nature of the taper itself. Due to the single contact electrical driving conditions, this device is suitable for obtaining mode-locked pulses in a very simple manner and, unlike multisection lasers, can be easily mounted p-side down for efficient heat-sinking for cw mode-locked operation.

Original languageEnglish (US)
Title of host publicationConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages2
StatePublished - 1995
EventProceedings of the 1995 8th Annual Meeting of the IEEE Lasers and Electro-Optics Society. Part 1 (of 2) - San Francisco, CA, USA
Duration: Oct 30 1995Nov 2 1995


OtherProceedings of the 1995 8th Annual Meeting of the IEEE Lasers and Electro-Optics Society. Part 1 (of 2)
CitySan Francisco, CA, USA

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering


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