一种基于板条角度选通多通放大超荧光光源

本发明提供了一种基于板条角度选通多通放大超荧光光源，该方案包括有板条激光增益介质、成像透镜、平面高反镜和空间滤波矩形小孔光阑；板条激光增益介质发出的激光束经过成像透镜和空间滤波矩形小孔光阑后经过平面高反镜反射后在入射回板条激光增益介质后射出。该方案光路结构简单，既能够获得超高的增益（小信号增益可达108量级甚至更高），同时能够避免反馈导致的激光起振，可实现高功率、高效率、高光束质量、不同波长超荧光输出，大大拓展超荧光光源的应用领域。 The invention provides a multi-pass amplification super-fluorescent source based on slat angle gating. The super-fluorescent source provided by the scheme comprises a slat laser gain medium, an imaging lens, a plane high reflectivity mirror and a spatial filtering rectangular small aperture, wherein a laser beam emitted by the slat laser gain medium passes through the imaging lens and the spatial filtering rectangular small aperture, is reflected through the plane high reflectivity mirror, and enters the slat laser gain medium so as to be ejected. According to the scheme, a light path structure is simple, a super-high gain (a small signal gain can reach to 10 -order or even much higher) can be acquired, meanwhile, laser oscillation starting caused by feedback can be avoided, super-fluorescence