Title :
Tunable, gain-clamped EDFA incorporating chirped fibre Bragg grating
Author :
Bryce, J. ; Yoffe, G. ; Zhao, Y. ; Minasian, R.
Author_Institution :
Dept. of Electr. Eng., Sydney Univ., NSW, Australia
fDate :
8/20/1998 12:00:00 AM
Abstract :
A new technique for tuning the gain of a gain-clamped erbium-doped fibre amplifier is presented. It uses a chirped fibre grating (with linear slope reflectivity) and a narrowband uniform grating to form the laser cavity. By strain tuning the input narrowband grating, the laser feedback is varied and the amplifier inversion and gain can be controlled. This technique provides a continuous gain tuning capability, together with clamped gain operation
Keywords :
chirp modulation; diffraction gratings; erbium; fibre lasers; laser cavity resonators; laser feedback; laser tuning; chirped fibre Bragg grating; erbium-doped fibre amplifier; gain tuning; gain-clamped EDFA; inversion; laser cavity; laser feedback; narrowband grating; reflectivity; strain tuning;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981077
