Title :
D-fibre filter for erbium gain spectrum flattening
Author :
Wilkinson, Michael ; Bebbington, A. ; Cassidy, S.A. ; Mckee, Paul
Author_Institution :
British Telecom Labs., Martlesham Heath, Ipswich, UK
Abstract :
A novel type of filter based on D-fibre with an overlay grating is proposed. The fabrication and characterisation of the device are described and its use in an erbium doped fibre amplifier to obtain a flatter gain spectrum is discussed.
Keywords :
diffraction gratings; erbium; fibre lasers; laser accessories; optical fibres; optical filters; D-fibre filter; Er doped optical fibre; fabrication; gain spectrum flattening; overlay grating;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920081
