CAJ | 학술논문

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-20 dBm/2 nm功率密度时)和超过11dBm的总输出功率,该ASE光源的-10 dB带宽超过了87 nm,其谱的峰值功率密度达到了-2.5 dBm/2 nm.
제출료병실험연시료이용247 cm신형필기참이광섬화10 m전통규기참이광섬연합작위증익개질、채용쌍향빙포결구적초관대방대자발복사광원.분석료기물리궤리,병여기타불동형식적결구,포괄이보도적유사결구,주료실험비교화이론분석.재저우240 mW적총빙포공솔화몰유사용임하외부보평탄려파기적정황하,통과우화전통규기참이광섬장도화량빙포원적공솔,획득료96 nm(1 522 nm～1 618 nm)적파장범위(대우-20 dBm/2 nm공솔밀도시)화초과11dBm적총수출공솔,해ASE광원적-10 dB대관초과료87 nm,기보적봉치공솔밀도체도료-2.5 dBm/2 nm.
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.