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Proceedings Paper

Narrow linewidth discrete mode laser diodes at 1550 nm
Author(s): John O'Carroll; Richard Phelan; Brian Kelly; Diarmuid Byrne; Frank Smyth; Barry Cardiff; Prince M. Anandarajah; Liam P. Barry
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Paper Abstract

We report on discrete mode laser diodes designed for narrow linewidth emission and demonstrate a linewidth as low as 96 kHz. A discrete mode laser diode with a minimum linewidth of 189 kHz was also characterised in a coherent transmission setup using quadrature phase shift keying modulation. Similar performance to an external cavity laser is demonstrated at baud rates as low as 2.5 Gbaud. The effect of increased linewidth on transmission performance is also investigated using lasers with linewidths up to 1.5 MHz.

Paper Details

Date Published: 15 May 2012
PDF: 9 pages
Proc. SPIE 8432, Semiconductor Lasers and Laser Dynamics V, 84320R (15 May 2012); doi: 10.1117/12.922132
Show Author Affiliations
John O'Carroll, Eblana Photonics Ltd. (Ireland)
Dublin City Univ. (Ireland)
Richard Phelan, Eblana Photonics Ltd. (Ireland)
Brian Kelly, Eblana Photonics Ltd. (Ireland)
Diarmuid Byrne, Eblana Photonics Ltd. (Ireland)
Frank Smyth, Dublin City Univ. (Ireland)
Barry Cardiff, Dublin City Univ. (Ireland)
Prince M. Anandarajah, Dublin City Univ. (Ireland)
Liam P. Barry, Dublin City Univ. (Ireland)

Published in SPIE Proceedings Vol. 8432:
Semiconductor Lasers and Laser Dynamics V
Krassimir Panajotov; Marc Sciamanna; Angel Valle; Rainer Michalzik, Editor(s)

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