The performance of L-band erbium-doped fiber amplifier(EDFA) of a simple structure with a fiber Bragg gration(FBG) was investigated. The injected C-band ASE by the FBG offers low-cost amplification and greatly improves the efficiency of the EDFA. The...
The performance of L-band erbium-doped fiber amplifier(EDFA) of a simple structure with a fiber Bragg gration(FBG) was investigated. The injected C-band ASE by the FBG offers low-cost amplification and greatly improves the efficiency of the EDFA. There are 9 and 4 dB improvements with the FBG at 1587 nm, at low and high input. respectively. the flat gain of 18dB. up to a total input of -5dBm at 150 mW of 980 nm pump, is obtained over 30 nm with less than ±0.5 dB gain variations without any gain equalizer. The proposed EDFA provides a cost-effective solution for wavelength division multiplexing systems.