Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5449841 | Optics Communications | 2017 | 6 Pages |
Abstract
In this study, we present the gain and noise figure performance improvement in L-band erbium-doped fiber amplifier (L-EDFA) provided by amplified spontaneous emission (ASE) reinjection through different configurations of 1533Â nm band FBGs. The experimental results are compared with a single-stage bidirectionally pumped conventional L-EDFA design. It is shown that when the forward and/or the backward ASE noise is partly reinjected to L-EDFA using a double/single 1533Â nm fiber Bragg gratings (FBG), the gain and noise figure performance of L-EDFA increases depending on the FBG configuration. The best gain and NF performance in our L-EDFA was achieved by reinjection of forward and backward ASE through FBG1 and FBG2 leading to an 4.5Â dB increase in gain and 1Â dB decrease in NF at 1585Â nm and â30Â dBm input signal power. The results show that both FBGs must be used at the same time to improve gain and NF performance in L-band EDFAs.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Fırat Ertaç Durak, Ahmet Altuncu,