An optical gain as high as 46·5 dB was obtained in an Er3+-doped fibre amplifier with pump power of 133 mW by a combination of broadband laser diodes at 1·48μm. A gain coefficient of 0·76dB/mW for the pump and a maximum output power of +15·1 dBm (32·4 mW) have also been achieved.
- Optical communications
- Optical fibres
- Semiconductor lasers
ASJC Scopus subject areas
- Electrical and Electronic Engineering