Dual-mode lasing in a 1310-nm quantum dot distributed feedback laser induced by single-beam optical injection

A. Hurtado, I. D. Henning, M. J. Adams, L. F. Lester

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Tunable dual-mode lasing is experimentally demonstrated in a 1310-nm quantum dot (QD) distributed-feedback (DFB) laser under single-beam optical injection. The wavelength spacing between the two lasing modes is controlled by injecting the external optical signal into different residual Fabry-Perot modes of the QD DFB laser. The influence of important parameters, i.e., injection strength and bias current, is also analyzed. The simple experimental configuration used to achieve tunable dual-mode lasing and the theoretically superior properties of the QD laser offer exciting prospects for the use of these devices in microwave signal generation and radio-over-fiber applications for future mobile communication networks.

Original languageEnglish
Article number201117
Number of pages4
JournalApplied Physics Letters
Issue number20
Publication statusPublished - 20 May 2013


  • external optical signals
  • Fabry-perot modes
  • lasing modes
  • microwave signal generations
  • mobile communication networks
  • optical injection
  • quantum dot distributed feedback lasers
  • wavelength spacing

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