A distributed feedback laser was fabricated in Er³⁺-doped photonic crystal fibre. Single mode lasing is obtained with <10kHz linewidth. The output was amplified to 12mW using a commercial erbium doped fibre amplifier (ELIFA).
19th International Conference on Optical Fibre Sensors (OFS 2008). Proceedings of SPIE, Volume 7004 (Perth, W.A. 14-18 April, 2008)