40 GHz mode-beating with 8Hz linewidth and 64fs timing jitter from a synchronized mode-locked quantum-dash laser diode

Ramón Maldonado-Basilio, Sylwester Latkowski, Severine Philippe, Pascal Landais

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)

Abstract

Linewidth narrowing of the radio frequency beat-tones and the optical-modes is experimentally investigated in a ˜40GHz quantum-dash mode-locked laser diode subject to optical injection of 10GHz pulses. In comparison to the 75kHz linewidth exhibited by the beat-tones in passive mode-locking conditions, a remarkable reduction to less than 8Hz is achieved when the laser is under optical injection. From this beat-tone signal, an integrated root-mean-square timing jitter of 64fs is calculated. In addition, a quadratic profile of the optical linewidth with the wavelength is observed in active locking, reaching a minimum of 1.7MHz for the longitudinal modes around 1530nm and progressively increasing to 37.4MHz for modes at 1525nm.
Original languageEnglish
Pages (from-to)3142-3144
JournalOptics Letters
Volume36
Issue number16
DOIs
Publication statusPublished - 15 Aug 2011
Externally publishedYes

Keywords

  • Mode-locked lasers
  • Semiconductor lasers
  • Quantum-well
  • -wire and -dot devices

Fingerprint Dive into the research topics of '40 GHz mode-beating with 8Hz linewidth and 64fs timing jitter from a synchronized mode-locked quantum-dash laser diode'. Together they form a unique fingerprint.

Cite this