Advances in Gain Control Techniques for Bismuth-Doped Fiber Amplifier
Tigang Ning
With the explosive growth of global data traffic, extending communication bandwidth is one of the important methods to alleviate the pressure on communication capacity. As the core device of an optical fiber communication system, the bandwidth extension of the optical amplifier is an indispensable research focus. Bismuth-doped fiber amplifier (BDFA) has been widely studied because of its unique broadband luminescence characteristics. In wavelength division multiplexing systems, the signal power