An Efficient and Low Noise L-band Erbium-Doped Fiber Amplifier

• Main Authors: Harun, Sulaiman Wadi, Ahmad, Harith
• Other Authors: Ahmad, Abdul Latif
• Format: Book Section
• Language: English
• Published: Penerbit Universiti Sains Malaysia 2004
• Subjects: Q179.9-180 Research
• Online Access: http://eprints.usm.my/43319/1/pME01.pdf; http://eprints.usm.my/43319/

The use of the long-wavelength-band (Lband) is attractive for both increasing the capacity of wavelength division multiplexing (WDM) systems and has been used in WDM transmission experiments at over 1 Tb/s. Recently, a gain bandwidth of about 80nm has been achieved by integrating the L-band EDFA in parallel with conventional band (Cband) EDFA [1]. Moreover, the L-band EDFAs will make it possible to construct an effective WDM systems employing dispersion-shifted fiber (DSF) without the degradation caused by four-wave-mixing (FWM) [2]. The L-band erbium-doped fiber amplifier (EDFA) is studied because it can be constructed by silica-based erbium-doped fiber (EDF) and has a low linearity for WDM signals. However, L-band EDFAs have a low power conversion efficiency (PCE) compared to a C-band.