Wang Shan, Lv Zhiguo, Qiu Jintao
School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China.
Nanomaterials (Basel). 2023 Jan 28;13(3):535. doi: 10.3390/nano13030535.
Dispersion management plays an important role in improving the output performance of a mode-locked fiber laser. Therefore, dispersion management is carried out by introducing the grating pair in our experiment. Through adjusting the distance between the grating pair, mode-locked pulses corresponding to different dispersion regimes can be realized, which typically range from soliton state in the anomalous dispersion regime to the dissipative soliton format in the normal dispersion regime. Furthermore, tunable spectrum distribution can be achieved by adjusting two intra-cavity polarization controllers. The proposed dispersion management method complements mode-locking techniques based on nonlinear multimode interference (NL-MMI). The laser can operate with self-start mode locking stably and is useful for practice applications.
色散管理在提高锁模光纤激光器的输出性能方面起着重要作用。因此，在我们的实验中通过引入光栅对来进行色散管理。通过调整光栅对之间的距离，可以实现对应于不同色散区域的锁模脉冲，其通常范围从反常色散区域的孤子状态到正常色散区域的耗散孤子形式。此外，通过调整两个腔内偏振控制器可以实现可调谐的光谱分布。所提出的色散管理方法补充了基于非线性多模干涉（NL-MMI）的锁模技术。该激光器可以稳定地以自启动锁模方式运行，并且对实际应用很有用。
