Experimental and theoretical studies on a double-pass C-band bismuth-based erbium-doped fiber amplifier

• Published in: Optics and laser technology Vol. 42; no. 5; pp. 790 - 793
• Main Authors: Harun, S.W., Parvizi, R., Cheng, X.S., Parvizi, A., Emami, S.D., Arof, H., Ahmad, H.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01-07-2010; Elsevier
• Subjects: Bismuth Erbium-doped fiber; C-band; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Laser optical systems: design and operation; Optical amplifier; Optics; Physics; Resonators, cavities, amplifiers, arrays, and rings; Optical amplifier; C-band; Bismuth Erbium-doped fiber; Optical fibers; Erbium-doped fiber
• ISSN: 0030-3992; 1879-2545
• DOI: 10.1016/j.optlastec.2009.12.004

Performance of a Bismuth-based Erbium-doped fiber amplifier is experimentally and theoretically investigated using 1480
nm pumping with double-pass scheme. In the theoretical analysis, the rate and power propagation equations are solved to examine the optimum length for the C-band operation as well as the gain and noise figure characteristics. The calculated small signal gain is 38
dB with gain variation of less than 3
dB. The measured gain is 4
dB lower due to spurious reflections which were ignored in the theoretical analysis. At input signal power of 0
dBm, a gain of 14.5
dB is obtained experimentally with gain variation of less than 1
dB within the wavelength region from 1530 to 1565
nm. The noise figure is less than 12
dB within this region.