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发明申请
US20080219300A1 High Power Fiber Laser 审中-公开
大功率光纤激光器

High Power Fiber Laser
摘要：
Fiber laser (130), for producing a single mode (SM) polarized single frequency (SF) high power laser beam of light, the fiber laser including an SF laser oscillator (132), a fiber laser pre amplifier (134, 150) and a high power fiber laser power amplifier (136, 200, 300), the fiber laser pre amplifier being optically coupled with the laser oscillator and the high power fiber laser power amplifier being optically coupled with the fiber laser pre amplifier, the SF laser oscillator for generating a laser beam of light having a predetermined frequency, the fiber laser pre amplifier for pre amplifying the laser beam of light and the high power fiber laser power amplifier for amplifying the laser beam of light, the high power fiber laser power amplifier including a fiber optic isolator (206, 302), at least one first amplification stage (202, 314) and at least one second amplification stage (204, 316), the fiber optic isolator being optically coupled with the fiber laser pre amplifier and the second amplification stage being optically coupled with the first amplification stage, the first amplification stage for amplifying the laser beam of light, the second amplification stage for further amplifying the laser beam of light and the second amplification stage outputting the laser beam of light (230, 310).
摘要（中）：

用于产生单模（SM）极化单频（SF）大功率激光束的光纤激光器（130），所述光纤激光器包括SF激光振荡器（132），光纤激光预放大器（134,150）和 高功率光纤激光功率放大器（136,200,300），与激光振荡器光学耦合的光纤激光预放大器和与光纤激光预放大器光学耦合的高功率光纤激光功率放大器，用于 产生具有预定频率的激光束，用于预放大激光束的光纤激光预放大器和用于放大激光束的大功率光纤激光功率放大器，包括光纤的大功率光纤激光功率放大器 光隔离器（206,302），至少一个第一放大级（202,314）和至少一个第二放大级（204,316），光纤隔离器与光纤激光预放大器光学耦合 所述第二放大级与所述第一放大级光学耦合，所述第一放大级用于放大所述激光束，所述第二放大级用于进一步放大所述激光束，所述第二放大级输出所述激光束 （230,310）。

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