A novel gain-shifted high-concentration Tm~(3+)-Yb~(3+)-codoped tellurite fibre amplifier using 980 nm pumping

摘要

A 24 cm gain-shifted Tm~(3+)-Yb~(3+)-codoped tellurite fibre employing novel high concentration doping technique and using 980 nm diode laser single-wavelength pumping is demonstrated with a maximum gain of 6 dB at 1490 nm and a gain range of 1475～1505 nm.