Monolithic passive mode-locking in single contact tapered lasers

K. A. Williams, H. D. 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: Contribution to journalConference articlepeer-review


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
Pages (from-to)135-136
Number of pages2
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
Publication statusPublished - 1 Dec 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: 30 Oct 19952 Nov 1995

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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