Title :
Dichroic tap for optical multiple access systems with distributed amplification
Author :
Mackenzie, F. ; Cassidy, S.A. ; Davey, S.T. ; White, T.K. ; Williams, D.L.
Author_Institution :
British Telecom Res. Labs., Ipswich, UK
Abstract :
Tapping of signal from an optical backplane which includes amplification also causes a loss of pump power at the tapping points. This pump loss can be a significant factor in limiting the number of ports that can be served through power budget considerations. A report is made on the fabrication of a dichroic tap capable of giving a pump rejection in excess of 10 dB.
Keywords :
multi-access systems; optical communication equipment; optical couplers; optical interconnections; optical losses; optical pumping; dichroic tap; distributed amplification; optical backplane; optical multiple access systems; port number; power budget considerations; pump power losses; pump rejection; signal tapping; tapping points;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910116
