Hamzah, A., Harun, S.W., Huri, N.A.D., Lokman, A., Arof, H., Paul, M.C., Pal, M., Das, S., Bhadra, S.K., Ahmad, H., Yoo, S., Kalita, M.P., Boyland, A.J. and Sahu, J.K.
Multi-wavelength fiber laser with erbium doped zirconia fiber and semiconductor optical amplifier.
Optoelectronics and Advanced Materials - Rapid Communications, 4, (10), .
Multi-wavelength hybrid fiber lasers are demonstrated in both ring and linear cavities using a fabricated Erbium-doped Zirconia fiber (EDZF) and semiconductor optical amplifier (SOA) as gain media. In both configurations, the a fiber loop mirror, which is constructed using a 3 m long polarization maintaining fiber (PMF) and a polarization insensitive 3dB coupler is used as a comb filter for the fiber laser. In the ring cavity, 10 simultaneous lines with peak power above -26 dBm is obtained at 1550 nm region. This is an improvement compared to the linear cavity configuration which has only 5 simultaneous lines observed from wavelength 1556.1 nm to 1563.0 nm with the peak power above -40 dBm. Both hybrid lasers has a constant line spacing of 1.7 nm, which is suitable for wavelength division multiplexing and sensing applications and shows a stable operation at room temperature.
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