Tunable master-oscillator power-amplifier based on chirped quantum-dot structures

Ying Ding, Ali Alhazime, Daniil Nikitichev, Ksenia Fedorova, Myke Ruiz, Michael Tran, Yannick Robert, Alexandros Kapsalis, Hercules Simos, Charis Mesaritakis, Tianhong Xu, Paolo Bardella, Mattia Rossetti, Igor Krestnikov, Daniil Livshits, Ivo Montrosset, Dimitris Syvridis, Maria A. Cataluna, Michel Krakowski, Edik Rafailov

Research output: Contribution to journalArticlepeer-review


A broadly tunable master-oscillator power-amplifier (MOPA) picosecond optical pulse source is demonstrated, consisting of an external cavity passively mode-locked laser diode with a tapered semiconductor amplifier. By employing chirped quantum-dot structures on both the oscillator's gain chip and amplifier, a wide tunability range between 1187 and 1283 nm is achieved. Under mode-locked operation, the highest output peak power of 4.39 W is achieved from the MOPA, corresponding to a peak power spectral density of 31.4 dBm/nm.
Original languageEnglish
Pages (from-to)1841-1844
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number20
Early online date31 Aug 2012
Publication statusPublished - 15 Oct 2012

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  • chirped quantum dots
  • master-oscillator power-amplifier
  • mode-locking
  • tunability


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