- Infrared fiber sensing, Infrared & Near Infrared fiber spectroscopy 
- Infrared fiber-optic pyrometry, ultra-fast infrared fiber pyrometry
- Astronomy : fluoride glass infrared fiber astronomical interferometry
- Telecommunication : rare earth-doped fluoride glass fiber optical amplifier modules
- Visible fluoride glass fiber laser (blue, green, yellow, red, ...) 
- Infrared fluoride glass fiber laser  
- Medicine & Surgery :  Er:YAG laser beam delivery fibers