基于铋基和硅基掺铒光纤联合的超宽带ASE光源

提出了并实验演示了利用247 cm新型铋基掺铒光纤和10 m传统硅基掺铒光纤联合作为增益介质、采用双向泵浦结构的超宽带放大自发辐射光源.分析了其物理机理,并与其它不同形式的结构,包括已报道的类似结构,做了实验比较和理论分析.在低于240 mW的总泵浦功率和没有使用任何外部谱平坦滤波器的情况下,通过优化传统硅基掺铒光纤长度和两泵浦源的功率,获得了96 nm（1 522 nm～1 618 nm）的波长范围（大于－20dBm/2nm功率密度时）和超过11dBm的总输出功率,该ASE光源的－10dB带宽超过了87nm,其谱的峰值功率密度达到了－2.5 dBm/2 nm.

Ultra-broadband ASE Source Using Combination of Bismuth-and Silicon-based Erbium-doped Fibers

An ultra-broadband amplified spontaneous emission (ASE) source was proposed and demonstrated by using a combination of a novel 247 cm Bismuth-based Erbium-doped fiber and a conventional 10 m Erbium-doped fiber in a configuration of bi-directional pumps. The physical mechanism was explained and the performance was compared with those for some other similar configurations. Without any external spectral filters and with a total pump power of less than 240 mW,an ASE source with a wavelength range of 96 nm (1 522 nm～1 618 nm, over -20 dBm/2 nm)and a total output power of over 11 dBm was achieved by optimizing the EDFs' lengths and the pump powers. The -10 dB bandwidth and the peak power density of the output spectrum are over 87 nm and -2.5 dBm/2 nm, respectively.作者简介：CHEN Da-ru,Tel:0571-88206515-227 Email:daru@coer.zju.edu.cn