Narrow linewidth discrete mode laser diodes at 1550 nm

John O'Carroll; Richard Phelan; Brian Kelly; Diarmuid Byrne; Frank Smyth; Barry Cardiff; Prince M. Anandarajah; Liam P. Barry

doi:10.1117/12.922132

15 May 2012 Narrow linewidth discrete mode laser diodes at 1550 nm

John O'Carroll, Richard Phelan, Brian Kelly, Diarmuid Byrne, Frank Smyth, Barry Cardiff, Prince M. Anandarajah, Liam P. Barry

Author Affiliations +

Proceedings Volume 8432, Semiconductor Lasers and Laser Dynamics V; 84320R (2012) https://doi.org/10.1117/12.922132
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

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.

Citation Download Citation

John O'Carroll, Richard Phelan, Brian Kelly, Diarmuid Byrne, Frank Smyth, Barry Cardiff, Prince M. Anandarajah, and Liam P. Barry "Narrow linewidth discrete mode laser diodes at 1550 nm", Proc. SPIE 8432, Semiconductor Lasers and Laser Dynamics V, 84320R (15 May 2012); https://doi.org/10.1117/12.922132

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