A New Design and Fabrication of Tapered Fiber-Based Loop Mirror as a Gain Flattened Erbium Doped Fiber Amplifier

The purpose of this study is flattening the amplified spontaneous emission (ASE) spectrum based on an erbium-doped fiber (EDF) by using a standard fiber-based loop mirror (FLM) and tapered fiber. Subsequently, an over-coupled coupler is fabricated to realize the FLM, which is integrated to an EDF pumped by a ۹۸۰-nm laser diode with a power level of ۱۰۰ mW. By introducing an appropriate amount of bend-induced and inserting the optical tapered fiber in FLM, the ASE spectrum of the EDF was flattened within ۰.۹ dB over a wavelength range of ۳۱ nm in the C-band (۱۵۲۵ nm-۱۵۵۶ nm).

کلیدواژه ها:

ASE source ، en ، Erbium-doped fiber amplifier (EDFA) ، Fiber Loop Mirror (FLM) ، Gain-flattening spectrum ، Optical taper Fiber