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 swit...

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Bibliographic Details
Published inApplied physics letters Vol. 105; no. 12
Main Authors Virte, Martin, Breuer, Stefan, Sciamanna, Marc, Panajotov, Krassimir
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 22.09.2014
Subjects
Applied physics
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
EMISSION
EXCITED STATES
FEEDBACK
Ground state
GROUND STATES
Lasers
Optical feedback
Qualitative analysis
Quantum dot lasers
QUANTUM DOTS
SEMICONDUCTOR LASERS
SIMULATION
Switching
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Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4896576