Quantum dash based single section mode locked lasers for photonic integrated circuits

Siddharth Joshi, Cosimo Calò, Nicolas Chimot, Mindaugas Radziunas, Rostislav Arkhipov, Sophie Barbet, Alain Accard, Abderrahim Ramdane, Francois Lelarge

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


We present the first demonstration of an InAs/InP Quantum Dash based single-section frequency comb generator designed for use in photonic integrated circuits (PICs). The laser cavity is closed using a specifically designed Bragg reflector without compromising the mode-locking performance of the self pulsating laser. This enables the integration of single-section mode-locked laser in photonic integrated circuits as on-chip frequency comb generators.We also investigate the relations between cavity modes in such a device and demonstrate how the dispersion of the complex mode frequencies induced by the Bragg grating implies a violation of the equi-distance between the adjacent mode frequencies and, therefore, forbids the locking of the modes in a classical Bragg Device. Finally we integrate such a Bragg Mirror based laser with Semiconductor Optical Amplifier (SOA) to demonstrate the monolithic integration of QDash based low phase noise sources in PICs.

Original languageEnglish
Pages (from-to)11254-11266
Number of pages13
JournalOptics Express
Issue number9
StatePublished - 2014

Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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