Title :
Over-10 mw broadband pr/sup 3+/:ZBLAN-fibre light source at 635 nm pumped by GaN LD
Author :
Okamoto, Hiroshi ; Kasuga, K. ; Hara, I. ; Kubota, Yuko
Author_Institution :
Chem. Res. Centre, Central Glass Co. Ltd., Kawagoe
Abstract :
The first over-10 mW broadband fibre light source at 635 nm is reported. The full width at half maximum (FWHM) of the spectrum is 1.8 nm. By comparing the maximum amplified spontaneous emission intensity of a Pr3+-doped fibre (PDF) with that of a Pr3+-and-Yb3+ codoped fibre (PYDF) pumped by the same 448 nm GaN laser diode, it was found that the emission intensity at 635 nm was over 200 times higher for the PDF.
Keywords :
III-V semiconductors; aluminium compounds; barium compounds; fibre lasers; gallium compounds; lanthanum compounds; laser beams; light sources; optical pumping; praseodymium; sodium compounds; spectral line intensity; superradiance; wide band gap semiconductors; zirconium compounds; ASE power; GaN; ZBLAN:Pr3+; amplified spontaneous emission intensity; broadband fibre light source; codoped fibre light source comparison; laser diode; power 10 mW; spectrum FWHM; wavelength 448 nm; wavelength 635 nm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20089781
