包层泵浦的L波段Er^(3+)/Yb^(3+)共掺光纤激光器

Cladding Pumped Erbium-ytterbium Co-doped Double Clad Fiber Ring Laser Operating in L-band

报道了一种工作波长在L波段的包层泵浦Er3+ /Yb3+共掺光纤环形激光器 环形腔内的激光工作介质为一段9m长的Er3+ /Yb3+共掺高掺杂光纤 利用6个976nmLD同时抽运前段Er3+ /Yb3+共掺双包层光纤产生的放大自发辐射谱作二次抽运源,使腔内增义谱由C波段移到L波段,实现了L波段光纤激光器的稳定输出;采用包层泵浦技术,在抽运功率为3594. 5mW时,测得泵浦入纤功率为2731. 8mW,实现了输出连续功率最大518. 4mW,斜率效率达到19% 的激光输出;所形成激光的工作波长为1613. 94nm,激光光谱的3dB带宽为1. 5nm,边模抑制比接近于50dB。

A cladding pumped Er/Yb co-doped double clad fiber ring laser operating in L-band is demonstrated. A 9-m-long Er3+/Yb3+ co-doped fiber (EYDF) is used as the gain medium, and six diode lasers are used to cladding pump EYDF, by utilizing amplified spontaneous emission as a secondary pump source, the laser can operate in L-band stably. When the pumping power is 3594.5 mW, the pump power of entering fiber is measured to be 2731.8 mW and the maximum output power obtained is 518.4 mW, the slope efficiency is 19%. The laser output wavelength is 1613.94 nm, the 3 dB band width is 0.15 nm, and the side mode suppression ratio is about 50 dB.