Bismuth-based erbium-doped fiber as a gain medium for L-band amplification and Brillouin fiber laser |
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Authors: | H Ahmad S Shahi and S W Harun |
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Institution: | 1.Photonics Research Center, University of Malaya, 50603, Kuala Lumpur, Malaysia ;2.Department of Electrical Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia ; |
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Abstract: | Bismuth-based erbium-doped fiber (Bi-EDF) is demonstrated as an alternative medium for optical amplification and nonlinear
applications. The bismuth glass host provides the opportunity to be doped heavily with erbium ions to allow a compact optical
amplifier design. The bismuth-based erbium-doped fiber amplifier (Bi-EDFA) is demonstrated to operate at wavelength region
from 1570 to 1620 nm using only a 215 cm long of gain medium. The maximum gain of 15.8 dB is obtained at signal wavelength
of 1610 nm with the corresponding noise figure of about 6.3 dB. A multi-wavelength laser comb is also demonstrated using a
stimulated Brillouin scattering in the 215 cm long Bi-EDF assisted by the 1480 nm pumping. The laser generates more than 40
lines of optical comb with a line spacing of approximately 0.08 at 1612.5 nm region using 152 mW of 1480 nm pump power. |
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