From: Conception, modelling, and characterization of a fiber amplifier with a simple and easy-to-repair configuration intended for the use in harsh environments
Splice point
Upstream fiber
Downstream fiber
Coating
1
SM/PM with SC/APC fiber connector
SM/PM
Protection sleeve
2
3
MMF1
MMF2
4
PF
YDF
Reacoating
5
YDF with HPC
Bare