Investigations of repetition rate stability of a mode-locked quantum dot semiconductor laser in an auxiliary optical fiber cavity

Stefan Breuer, Wolfgang Elsässer, J.G. McInerney, Kresten Yvind, Jose Pozo, Erwin A.J.M. Bente, Mirvais Yousefi, Asier Villafranca, Nikos Vogiatzis, Judy Rorison

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We have investigated experimentally the pulse train (mode beating) stability of a monolithic mode-locked multi-section quantum-dot laser with an added passive auxiliary optical fiber cavity. Addition of the weakly coupled (¿ -24dB) cavity reduces the current-induced shift d¿/dI of the principal peak in the RF spectrum (the effective pulse repetition frequency) by more than an order of magnitude, from -39.5 to -2.3 kHz/mA. The rms timing jitter of the pulse train is simultaneously reduced from 1.4 to 0.9 ps.
Original languageEnglish
JournalI E E E Journal of Quantum Electronics
Volume46
Issue number2
Pages (from-to)150-157
ISSN0018-9197
DOIs
Publication statusPublished - 2010

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