Title :
Single transverse mode operation at 1345 nm wavelength of a diode-laser pumped neodymium:ZBLAN multimode fiber laser
Author :
Millar, C.A. ; Fleming, S.C. ; Brierley, M.C. ; Hunt, M.H.
Author_Institution :
British Telecom Res. Lab., Ipswich, UK
fDate :
6/1/1990 12:00:00 AM
Abstract :
A diode-laser pumped multitransverse-mode neodymium-doped fluoride fiber laser is shown to oscillate in the lowest-order transverse mode when the cavity conditions are optimized. The combination of good pump coupling efficiency, laser operating efficiency, and good overlap of the HE/sub 11/ mode to that of a single-mode fiber, allows up to 12 mW of continuous wave (CW) power to be coupled into a standard single-mode fiber at a 1345-nm wavelength. Improved lens design should significantly increase the power injected into the single-mode fiber from the multimode fiber laser.<>
Keywords :
fibre optics; fluoride glasses; laser modes; neodymium; optical pumping; solid lasers; 12 mW; 1345 nm; CW laser power; HE/sub 11/ mode; Nd:ZBLAN multimode fibre laser; cavity conditions; diode-laser pumped; fluoride fiber laser; laser operating efficiency; lens design; lowest-order transverse mode; multitransverse-mode; pump coupling efficiency; single-mode fiber; Diodes; Fiber lasers; Laser excitation; Laser modes; Lenses; Optical coupling; Optical design; Power lasers; Pump lasers;
Journal_Title :
Photonics Technology Letters, IEEE
