Optimum phase noise reduction and repetition rate tuning in quantum-dot mode-locked lasers

T. Habruseva, D. Arsenijević, M. Kleinert, D. Bimberg, G. Huyet, S.P. Hegarty

Research output: Contribution to journalArticlepeer-review


Competing approaches exist, which allow control of phase noise and frequency tuning in mode-locked lasers, but no judgement of pros and cons based on a comparative analysis was presented yet. Here, we compare results of hybrid mode-locking, hybrid mode-locking with optical injection seeding, and sideband optical injection seeding performed on the same quantum dot laser under identical bias conditions. We achieved the lowest integrated jitter of 121 fs and a record large radio-frequency (RF) tuning range of 342 MHz with sideband injection seeding of the passively mode-locked laser. The combination of hybrid mode-locking together with optical injection-locking resulted in 240 fs integrated jitter and a RF tuning range of 167 MHz. Using conventional hybrid mode-locking, the integrated jitter and the RF tuning range were 620 fs and 10 MHz, respectively.

Original languageEnglish
Article number021112
Number of pages4
JournalApplied Physics Letters
Issue number2
Publication statusPublished - 13 Jan 2014

Bibliographical note

Funding: EU FP7 Marie Curie Action FP7-PEOPLE-2010-ITN (PROPHET project, Grant No. 264687); INSPIRE programme (Irish Government's Programme for Research in Third Level Institutions); Cycle 4, National Development Plan 2007-2013 (Science Foundation Ireland - Contract No. 07/IN.1/I929); framework of the SFB 787; and EU FP7 Marie Curie Action FP7-PEOPLE-2011-IEF, Grant No. 299288.


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