Abstract

This research carries out coherence measurements of a 42.7 GHz quantum dash (QDash) semiconductor laser when passively, electrically, and optically mode-locked. Coherence of the spectral lines from the mode-locked laser is determined by examining the radio frequency beat-tone linewidth as the mode spacing is increased up to 1.1 THz. Electric-field measurements of the QDash laser are also presented, from which a comparison between experimental results and accepted theory for coherence in passively mode-locked lasers has been performed.

© 2012 Optical Society of America

Mode coherence measurements across a 1.5 THz spectral bandwidth of a passively mode-locked quantum dash laser

Regan Watts, Ricardo Rosales, Francois Lelarge, Abderrahim Ramdane, and Liam Barry
Opt. Lett. 37(9) 1499-1501 (2012)

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

Ramón Maldonado-Basilio, Sylwester Latkowski, Severine Philippe, and Pascal Landais
Opt. Lett. 36(16) 3142-3144 (2011)

Timing-jitter, optical, and mode-beating linewidths analysis on subpicosecond optical pulses generated by a quantum-dash passively mode-locked semiconductor laser

Ramón Maldonado-Basilio, Josué Parra-Cetina, Sylwester Latkowski, and Pascal Landais
Opt. Lett. 35(8) 1184-1186 (2010)

High performance mode locking characteristics of single section quantum dash lasers

Ricardo Rosales, S. G. Murdoch, R.T. Watts, K. Merghem, Anthony Martinez, Francois Lelarge, Alain Accard, L. P. Barry, and Abderrahim Ramdane
Opt. Express 20(8) 8649-8657 (2012)

Phase-amplitude characterization of a high-repetition-rate quantum dash passively mode-locked laser

C. Gosset, K. Merghem, G. Moreau, A. Martinez, G. Aubin, J.-L. Oudar, A. Ramdane, and F. Lelarge
Opt. Lett. 31(12) 1848-1850 (2006)