Gain and noise figure improvements in a shorter wavelength region of EDFA using a macrobending approach
- 53 Downloads
Gain and noise figure improvements are demonstrated in a shorter wavelength region of a double-pass EDFA using a macrobending approach. The EDF is wound in a small radius to suppress the amplified spontaneous emission at the longer wavelength in order to achieve a high amplification in the shorter wavelength. Gain enhancements of about 12–14 dB are obtained with macrobending at the wavelength region between 1480 and 1530 nm. The macrobending also reduces the noise figure of the EDFA at wavelengths shorter than 1525 nm with a maximum improvement of 25 dB.
PACS numbers42.60.Da 42.81.-i 42.81.Wg
Unable to display preview. Download preview PDF.
- 2.S.-K. Liaw, C.-K. Huang, and Y.-L. Hsiao, “Parallel-Type C+L Band Hybrid Amplifier Pumped by 1480 nm Laser Diodes,” Laser Phys. Lett. (2008) (in press).Google Scholar
- 3.S. D. Emami, S. W. Harun, F. Abd-Rahman, et al., “Theoretical Study on the Effects of an Auxiliary Pump on the Performance of TDFA,” Laser Phys., No. 8, 977–982 (2008).Google Scholar
- 4.J. Bromage, J.-C. Bouteiller, H. J. Thiele, et al., “S-Band All Raman Amplifiers for 40 × 10 Gb/s over 6 × 100 km of Nonzero Dispersion Fiber,” Opt. Fiber Commun. Conf. Exhibit 4, PD4-1–PD4-3 (2001).Google Scholar