Title :
Highly efficient 978 nm dipole-pumped erbium-doped fibre amplifier with 24 dB gain
Author :
Vodhanel, R.S. ; Laming, R.I. ; Shah, Virali ; Curtis, L. ; Bour, D.P. ; Barnes, Walter L. ; Minelly, John D ; Tarbox, E.J. ; Favire, F.J.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
Reports an Er3+-doped fibre amplifier pumped with a strained GaInAs/AlGaAs quantum-well dipole laser operating at 978 nm. Efficient optical coupling of the diode laser pump was achieved with a wedge-tipped fibre. An optical gain of 24 dB at 1535 nm was obtained with only 6.2 mW of pump power, corresponding to a gain of 3.9 dB/mW of pump power. This is the highest efficiency for a fibre amplifier achieved this far.
Keywords :
erbium; fibre optics; germanium compounds; laser transitions; optical communication equipment; optical pumping; silicon compounds; solid lasers; 1535 nm; 24 dB; 6.2 mW; 978 nm; GaInAs-AlGaAs; GeO 2-SiO 2:Er 3+; efficiency; optical coupling; optical pumping; quantum-well dipole laser; wedge-tipped fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890928
