Broadly tunable high-power InAs/GaAs quantum-dot external cavity diode lasers

Ksenia A. Fedorova, Maria Ana Cataluna, Igor L. Krestnikov, Daniil A. Livshits, Edik U. Rafailov

Research output: Contribution to journalArticlepeer-review

98 Citations (Scopus)


A record broadly tunable high-power external cavity InAs/GaAs quantum-dot diode laser with a tuning range of 202 nm (1122 nm-1324 nm) is demonstrated. A maximum output power of 480 mW and a side-mode suppression ratio greater than 45 dB are achieved in the central part of the tuning range. We exploit a number of strategies for enhancing the tuning range of external cavity quantum-dot lasers. Different waveguide designs, laser configurations and operation conditions (pump current and temperature) are investigated for optimization of output power and tunability.

Original languageEnglish
Pages (from-to)19438-19443
Number of pages6
JournalOptics Express
Issue number18
Publication statusPublished - 30 Aug 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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