Title :
Multi-colour laser oscillation in Pr3+-doped fluoro-aluminate glass fibre pumped by 442.6 nm GaN-semiconductor laser
Author :
Fujimoto, Yasutaka ; Ishii, O. ; Yamazaki, M.
Author_Institution :
Inst. of Laser Eng., Osaka Univ., Osaka, Japan
Abstract :
The successful drawing of a Pr-doped optical fibre of a waterproof fluoro-aluminate glass in an AlF3-YF3-PbF2 system with low loss (0.1 dB/m) is reported and multi-colour laser oscillation in a Pr3+-doped fluoro-aluminate glass fibre pumped by a 442.6 nm GaN-semiconductor laser is demonstrated. Since the fluoro-aluminate glass in an AlF3-YF3-PbF2 system has a remarkable water resistance advantage compared to ZBLAN glass, Pr-doped fluoro-aluminate glass fibre is expected to contribute to making a visible fibre laser with high chemical durability without a frequency doubling technique.
Keywords :
III-V semiconductors; fibre lasers; fluorine compounds; gallium compounds; glass fibres; optical pulse generation; semiconductor lasers; GaN; ZBLAN glass; fibre laser; fluoroaluminate glass fibre; frequency doubling technique; high chemical durability; multi-colour laser oscillation; remarkable water resistance; semiconductor laser; wavelength 442.6 nm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.1892
