一种窄纳秒主动调Q光纤激光器

• Format: Patent
• Language: Chinese
• Published: 24.05.2022
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

本发明涉及一种窄纳秒主动调Q光纤激光器，属于光电子技术领域；包括泵浦激光器、反射型光纤光栅、掺杂光纤、光纤功率剥离器、声光光纤Q开关、输出光纤光栅和腔体；其中，泵浦激光器、反射型光纤光栅、掺杂光纤、光纤功率剥离器、声光光纤Q开关和输出光纤光栅依次串联；腔体为水平放置的中空管状结构；掺杂光纤、光纤功率剥离器和声光光纤Q开关设置在腔体内；且反射型光纤光栅的轴向一端与腔体的轴向一端接触；输出光纤光栅的轴向一端与腔体的轴向另一端接触；本发明减小了脉冲在光纤激光腔内的渡越时间，实现在无需采用高速声光Q开关的情况下，获得较脉宽小于20ns的窄脉宽的脉冲光纤激光输出。 The invention relates to a narrow nanosecond active Q-switched fiber laser, which belongs to the technical field of photoelectrons. The fiber laser comprises a pump laser, a reflective fiber bragg grating, a doped fiber, a fiber power stripper, an acousto-optic fiber Q switch, an output fiber bragg grating and a cavity, wherein the pump laser, the reflective fiber bragg grating, the doped fiber, the fiber power stripper, the acousto-optic fiber Q switch and the output fiber bragg grating are sequentially connected in series. The cavity is of a horizontally-placed hollow tubular structure. Thedoped fiber, the optical fiber power stripper and the acousto-optic fiber Q switch are arranged in the cavity. One axial end of the reflective f