Dong, L., Loh, W.H., Caplen, J.E., Hsu, K., Minelly, J.D. and Reekie, L.
Photosensitive Er/Yb optical fibres for efficient single frequency fibre lasers.
Proceedings of Conference on Optical Fiber Communication (OFC 97).
Optical Fiber Communication (OFC 97)
Tin co-doping is used for photosensitive Er/Yb/P/Al/Si fibres. A 10 cm long 80% grating was written without hydrogenation to realise a single frequency DFB laser with an efficiency of 11%, the highest reported so far. A boron-co-doped germanosilicate ring next to the fibre core was used in the second approach to achieve 1 cm long high reflectors (>99.9%) and extremely low threshold single frequency DBR fibre lasers with 23% efficiency.
Actions (login required)