Title :
Demonstration of 52-nm gain bandwidth over 2400 km (540 dB loss) with gain-equalized low-noise wide-band EDFA´s
Author :
Chung, Hee Sang ; Choi, Hyun Beom ; Lee, Mun Seob ; Lee, Donghan ; Park, Namkyoo ; Ahn, Seong Joon
Author_Institution :
Dept. of Phys., Chungnam Nat. Univ., Taejon, South Korea
fDate :
3/1/2000 12:00:00 AM
Abstract :
We successfully demonstrate the compensation of 540-dB transmission loss over 52-nm gain bandwidth by using acoustooptic tunable filters in conjunction with silica-based low-noise wide-band amplifiers. A signal-to-noise rate of over 17 dB (optical) over the whole gain bandwidth has been achieved with very small gain variation (4.3 dB), which corresponds to only 0.8% of the total accumulated gain in the 30 erbium-doped fiber amplifier link.
Keywords :
acousto-optical filters; erbium; laser noise; optical communication equipment; optical fibre amplifiers; optical fibre losses; optical tuning; 2400 km; 4.3 dB; 540 dB; acoustooptic tunable filters; erbium-doped fiber amplifier link; gain-equalized low-noise wide-band EDFA´s; signal-to-noise rate; silica-based low-noise wide-band amplifiers; total accumulated gain; transmission loss; very small gain variation; whole gain bandwidth; Bandwidth; Broadband amplifiers; Gain; Low-noise amplifiers; Optical amplifiers; Optical fiber filters; Optical filters; Optical losses; Propagation losses; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
