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Title: Switching between ground and excited states by optical feedback in a quantum dot laser diode

We demonstrate switching between ground state and excited state emission in a quantum-dot laser subject to optical feedback. Even though the solitary laser emits only from the excited state, we can trigger the emission of the ground state by optical feedback. We observe recurrent but incomplete switching between the two emission states by variation of the external cavity length in the sub-micrometer scale. We obtain a good qualitative agreement of experimental results with simulation results obtained by a rate equation that accounts for the variations of the feedback phase.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [1] ;  [5]
  1. Brussels Photonics Team, Department of Applied Physics and Photonics (B-PHOT TONA), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels (Belgium)
  2. (LMOPS) EA-4423, 2 Rue Edouard Belin, F-57070 Metz (France)
  3. Institute of Applied Physics, Technische Universität Darmstadt, 64289 Darmstadt (Germany)
  4. Supélec, OPTEL Research Group, Laboratoire Matériaux Optiques, Photonique et Systèmes (LMOPS) EA-4423, 2 Rue Edouard Belin, F-57070 Metz (France)
  5. (Bulgaria)
Publication Date:
OSTI Identifier:
22350740
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; EMISSION; EXCITED STATES; FEEDBACK; GROUND STATES; QUANTUM DOTS; SEMICONDUCTOR LASERS; SIMULATION