Author/Authors :
Niu، نويسنده , , Xueke and Zhang، نويسنده , , Peiqing and Zhou، نويسنده , , Yaxun and Zhang، نويسنده , , Wei and Wang، نويسنده , , Xunsi and Shen، نويسنده , , Xiang and Lin، نويسنده , , Changgui and Xu، نويسنده , , Yinsheng and Wu، نويسنده , , Yuehao and Dai، نويسنده , , Shixun، نويسنده ,
Abstract :
This paper deals with the designing of a Tm3+-doped chalcogenide Photonic Crystal Fiber (PCF) amplifier operating in the mid-IR range. The chalcogenide glass of 72GeS2–18Ga2S3–10CsI (in mol%) was fabricated with the high temperature melt-quenching method, which exhibited a strong emission peak around 3.8 μm under the excitation of a 800 nm laser. By employing the rate equations and propagation equations, the amplifying characteristics of the designed PCF amplifier were worked out. It is shown that the designed PCF amplifier exhibits a signal gain larger than 30 dB and a spectral width wider than 200 nm. The theoretical models and simulation results show that the PCF presented in this work can be used in developing high efficiency mid-IR light sources.
Keywords :
Thulium-doped chalcogenide glass , Photonic crystal fiber , Rate-propagation equation , Mid-infrared signal gain
