In order to realize a experiment of laser cooling and trapping atoms , we have set up a laser diode injection locking system and achieved a laser with single mode , narrow linewidth and 60mw power output 为了进行原子冷却与俘获的实验研究,我们用注入锁定的方法获得了约60mw的单模窄线宽激光输出。
We also measure light intensity distributing of single mode pof " mode field by using ccd and lamp . the mode field distribution of end - face , gotten from the experiment , is accordant with theory 在单模塑料光纤模场光强分布测量实验中,采用ccd摄像头和白炽灯等对单模塑料光纤模场光强分布进行比较粗略的测量。
The measuring and experimental equipment were set up . the high power fiber laser with cw ( continuous wave ) output more than 10 watts , the laser beam is near diffraction - limited single mode ( temoo ) 建立了光纤激光器实验及测试系统,实现了十瓦连续输出的高功率光纤激光器,实现了近衍射受限单模( tem00 )输出。
However , in the pulse application fields , the output pulse energy from single mode fiber lasers or amplifiers is limited by amplified spontaneous emission ( ase ) , nonlinear effect and facet damage 在脉冲激光应用领域中,这类小芯径光纤放大器和激光器的输出脉冲能量受限于自发辐射放大、非线性效应以及光纤的端面损伤。