基于PbS掺杂环形芯光纤的光放大器  

Optical amplifier based on PbS doped ring core fiber

作　　者：徐灵敏 商娅娜[1] 陈振宜[1] XU Lingmin;SHANG Ya′na;CHEN Zhenyi(Key laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University,Shanghai 200444,China)

机构地区：[1]上海大学特种光纤与光接入网重点实验室,上海200444

出　　处：《光通信技术》2020年第11期35-38,共4页Optical Communication Technology

基　　金：国家自然科学基金(61675125、61875118)资助。

摘　　要：为了解决光纤传输的信号衰减和容量限制的问题,利用改进的化学气相沉积(MCVD)法制备了硫化铅(PbS)掺杂环形芯光纤,并且搭建反向泵浦光放大实验装置实现了在C波段的宽带放大,为后续利用PbS掺杂光纤实现少模光纤放大器提供了可能性。实验结果表明:随着泵浦功率的增加,样品光纤在C波段的开关增益增大;而随着信号功率的增大,开关增益减小;当泵浦功率为750 mW、信号光功率为0.003 nW时,样品光纤在C波段的开关增益为8 dB左右。In order to solve the problems of signal attenuation and capacity limitation in optical fiber transmission,PbS doped ring core fiber is prepared by improved chemical vapor deposition(MCVD),and a reverse pump light amplification experimental device is built to realize broadband amplification in C band,which provides the possibility for the realization of less mode fiber amplifier by using PbS doped fiber.The experimental results show that the switching gain of sample fiber in C-band increases with the increase of pump power,the switching gain decreases with the increase of signal power.When the pump power is 750 mW and the signal power is 0.003 nW,the switching gain of the sample fiber in C-band is about 8 dB.

关 键 词：光纤放大器 硫化铅掺杂 环形芯光纤 开关增益 

分 类 号：TN256[电子电信—物理电子学]