Wh. Loh et al., INTRACAVITY PUMPING FOR INCREASED OUTPUT POWER FROM A DISTRIBUTED-FEEDBACK ERBIUM FIBER LASER, Electronics Letters, 32(13), 1996, pp. 1204-1205
The use of an Yb3+-fibre host laser when intracavity pumping a distrib
uted feedback erbium fibre laser is demonstrated. Compared with direct
980 nm pumping of the same DFB laser, a three-fold increase in output
power is obtained.