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Fundamental and harmonic mode-locking with pulse repetition rate between 200 MHz and 6.8 GHz in a quantum-dot external-cavity laser

Fundamental and harmonic mode-locking with pulse repetition rate between 200 MHz and 6.8 GHz in a quantum-dot external-cavity laser

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Authors

  • Y. Ding
  • D.I. Nikitichev
  • I. Krestnikov
  • D. Livshits
  • M.A. Cataluna
  • E.U. Rafailov

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Info

Original languageEnglish
Title of host publication2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
Number of pages1
ISBN (Electronic)9781457705328
DOIs
StatePublished - 1 Jan 2011

Abstract

Semiconductor lasers with broad tunability of the pulse repetition rate in the range of MHz to GHz are very useful for non-linear imaging techniques, especially in the bio-medical field. In our previous work, we demonstrated a quantum-dot external-cavity passively mode-locked lasers (QD-ECMLL) incorporating a QD semiconductor saturable absorber mirror (SESAM) [1], generating pulses at repetition rates ranging from 1.5 GHz to 350 MHz. In a more recent investigation [2], a QD-ECMLL is demonstrated with pulse repetition rate as low as 310 MHz and corresponding harmonics up to 4 GHz (based on a fundamental frequency of ~1 GHz). We have demonstrated very recently the generation of high-peak-power picosecond pulses with repetition frequency from 2.4 GHz to 1.14GHz [3] using an external cavity output coupler of 96% transmissivity. © 2011 IEEE.

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