Properties of dysprosium-doped gallium lanthanum sulfide fiber amplifiers operating at 1.3 microm.
In light of recent progress in the fabrication of gallium lanthanum sulfide (GaLaS) fibers, we have modeled the performance of dysprosium-doped GaLaS fiber amplifiers operating at 1.3 microm . Based on experimental data, we find that the incorporation of a codopant (terbium) in the fiber core significantly shortens the optimum amplifier length from >30 m to approximately 3 m . Such a device may be practical, given the fiber losses currently achieved in GaLaS fibers.
Samson
B N
BN
Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK.
Schweizer
T
T
Hewak
D W
DW
Laming
R I
RI