Variable gain-flattened L-band erbium-doped fiber amplifier

• Main Authors: Abu Bakar, M.H., Sheih, S.J., Adikan, Faisal Rafiq Mahamd, Mahdi, M.A.
• Format: Article
• Language: English
• Published: IOP Publishing 2011
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/4662/1/Abu_Bakar-2011-Variable_gain-flatte.pdf; http://eprints.um.edu.my/4662/
• Institution: Universiti Malaya

This is a study on the design of variable gain-flattened erbium-doped fiber amplifier operating in L-band transmission window. Four amplifiers divided into five stages became the basis of the design with distributed pumping configuration. A dispersion compensating module was incorporated into the architecture as a way to combat dispersion. The amplifier was able to generate variable gain from 15 up to 30 dB under different input signal powers with a maximum output power of 23 dBm. Excellent gain flatness averaging around 0.8 dB was accomplished while four-wave mixing effect was significantly reduced.