Title :
Erbium-doped fibre pre-amplifier with an integral band-pass filter
Author :
Simeonidou, D. ; Yu, A. ; Mahony, M. J O ; Yao, J. ; Siddiqui, A.S.
Author_Institution :
Dept. of Electr. Syst. Eng., Essex Univ., Colchester, UK
Abstract :
The authors have shown that significant optical gain improvements can be achieved by inserting a narrow band-pass filter within the erbium-doped fibre amplifiers length to suppress the built-up of both forward and backward ASE powers, accompanied by a noise figure reduction of 0.6-0.8 dB. The optimum filter position is found to be around 48% and 42% from the input end of the total amplifier length for 1.48 μm and 0.98 μm pump wavelengths respectively
Keywords :
band-pass filters; erbium; fibre lasers; optical filters; preamplifiers; Er doped fibre preamplifier; amplified spontaneous emission power buildup; integral band-pass filter; noise figure reduction; optical gain improvements; optimum filter position;
Conference_Titel :
Optical Detectors and Receivers, IEE Colloquium on
Conference_Location :
London
