High gain S-band semiconductors optical amplifier with double-pass configuration

• Main Authors: Ahmad, Harith, Zulkifli, Mohd Zamani, Hassan, Nor Ahya, Latif, Amirah Abdul, Harun, Sulaiman Wadi
• Format: Article
• Published: IOP Publishing 2011
• Subjects: QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/19856/; https://doi.org/10.1134/S1054660X11130019

In this paper we propose and demonstrate a double-pass configuration of a compact high gain short wavelength (S-) band amplifier based on a semiconductor optical amplifier (SOA) operating from 1480 to 1520 nm. The proposed system provides gain value of 31.07 dB at a signal power level of -40 dBm taken at 1500 nm. The measure gain profile of the double-pass configuration over different power levels and at different signal wavelengths outperforms that of the single-pass configuration. The noise figure of both configurations averages out to 10 dB. This system provides a good alternative as a high-gain and compact amplifier in the S-band region.