中国激光, 2017, 44 (7): 0703013, 网络出版: 2017-07-05
基于黑磷量子点可饱和吸收体的多波长脉冲簇光纤激光器
Black Phosphorus Quantum Dots Saturable Absorber for Dual-Wavelength Pulse Cluster Fiber Laser
材料 锁模光纤激光器 黑磷量子点 可饱和吸收体 多波长 脉冲簇 materials mode-locked fiber laser black phosphorus quantum dots saturable absorber multi-wavelength pluse cluster
摘要
由于其独特的光电特性, 黑磷量子点(BPQDs)获得研究者们的广泛关注。将基于微纳光纤沉积BPQDs的光子器件接入掺铒光纤激光腔内, 利用其可饱和吸收特性和高非线性效应分别获得了单、双波长脉冲簇现象。在单波长脉冲簇状态下, 每簇脉冲包含9个脉冲, 各脉冲之间具有不同的时间间隔; 在双波长脉冲簇状态下, 每个波长分别对应一套脉冲簇序列, 两套脉冲簇序列具有不同的强度和时间间隔。该结果有助于加深人们对多波长光纤激光器及脉冲簇动力学的理解, 也证明了BPQDs可以作为性能优良的可饱和吸收体应用于超快光学领域。
Abstract
Due to their unique optoelectronic properties, recently the black phosphorus quantum dots (BPQDs) has attracted considerable attention. By introducing the microfiber-based BPQDs photonics device into the erbium-doped fiber laser cavity, the single and dual-wavelength pulse cluster phenomena are achieved because of the characteristics of saturable absorption and high nonlinear effect of BPQDs. In the case of single wavelength pulse cluster, each pulse cluster contains 9 pulses, which has different time intervals. While in the case of dual-wavelength pulse cluster, each wavelength corresponds to one sequence of pulse cluster, which has different amplitudes and time intervals. These results help to deepen the understanding of multi-wavelength fiber laser and pulse cluster dynamics, and further demonstrate that the BPQDs can act as the saturable absorber with excellent performance into many fields, such as ultrafast optics.
刘萌, 闫玉蓉, 汪徐德, 罗爱平, 徐文成, 罗智超. 基于黑磷量子点可饱和吸收体的多波长脉冲簇光纤激光器[J]. 中国激光, 2017, 44(7): 0703013. Liu Meng, Yan Yurong, Wang Xude, Luo Aiping, Xu Wencheng, Luo Zhichao. Black Phosphorus Quantum Dots Saturable Absorber for Dual-Wavelength Pulse Cluster Fiber Laser[J]. Chinese Journal of Lasers, 2017, 44(7): 0703013.