Mode-locked quantum dot lasers for picosecond pulse generation

M. G. Thompson, K. T. Tan, C. Marinelli, K. A. Williams, R. L. Sellin, R. V. Penty, I. H. White, M. Kuntz, M. Laemmlin, D. Ouyang, I. N. Kaiander, N. N. Ledentsov, D. Bimberg, V. M. Ustinov, A. E. Zhukov, A. R. Kovsh, F. Visinka, S. Jochum, S. Hansmann, D. J. KangM. G. Blamire

Research output: Contribution to journalConference articlepeer-review

5 Citations (SciVal)


In this work we present a detailed study of picosecond optical pulse generation using high-repetition rate mode-locked quantum dot lasers. MOCVD-grown quantum dot lasers emitting at 1,1 μm and MBE-grown quantum dot lasers emitting at 1.3μm are investigated. Passive mode-locking at 10GHz, 18GHz and 36GHz with pulse widths in the 6-12ps range are reported. Hybrid mode-locking is demonstrated at 10GHz, showing a significant improvement in the RF spectral characteristics when compared with passive mode-locking. A timing jitter of 600fs (2.5MHz to 50MHz) is measured in the 18GHz passively mode-locked laser. Autocorrelation techniques are used to characterise the high repetition rate mode-locked lasers as well as the time-bandwidth product of the optical pulses. Fourier-transform limited pulses are obtained from passively mode-locked QD lasers.

Original languageEnglish
Pages (from-to)107-116
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 16 Aug 2004
EventNovel In-Plane Semiconductor Lasers III - San Jose, CA, USA United States
Duration: 26 Jan 200428 Jan 2004


  • Mode-locking
  • Quantum dot
  • Semiconductor laser

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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