Title :
Wideband gain flattened erbium fibre amplifier using a photosensitive fibre blazed grating
Author :
Kashyap, Rekha ; Wyatt, R. ; Campbell, R.J.
Author_Institution :
BT Labs., Ipswich, UK
Abstract :
An erbium fibre amplifier with a highly flattened gain spectrum is demonstrated for the first time using an all fibre photosensitive Bragg grating. An ASE spectrum flattened to within +or-0.5 dB over a bandwidth of 35 nm in the 1550 nm window is achieved with a 3 mm long radiation coupling Bragg fibre grating.
Keywords :
diffraction gratings; erbium; fibre lasers; optical losses; 1550 nm; ASE spectrum; Er fibre amplifier; all fibre photosensitive Bragg grating; flattened gain spectrum; photosensitive fibre blazed grating; transmission loss spectrum;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930104
