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

• Published in: Applied physics letters Vol. 105; no. 12
• Main Authors: Virte, Martin, Breuer, Stefan, Sciamanna, Marc, Panajotov, Krassimir
• Format: Journal Article
• Language: English
• 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

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...