A dark pulse multi-wavelength mode-locked fibre laser was demonstrated via the enhanced zirconia-yttria-aluminium co-doped silica fibre (Zr-EDF) as a gain medium with the utilisation of black phosphorus as saturable absorber (BPSA). A self-started dark pulse was accomplished by increasing the pump power and carefully rotating a polarisation controller (PC). Five lasing lines of multi-wavelength were generated with small constant channel spacing of 0.6 nm. The measured fundamental repetition rate was 1 MHz with a pulse duration of 3.46 ps. At output power 9.89 mW, the calculated pulse energy was 9.89 nJ, whereas the optical signal to noise ratio (OSNR) was as high as 74.8 dB, which confirmed the stability of the dark pulse train.

利用增强型氧化锆-氧化钇-铝共掺杂石英纤维（Zr-EDF）作为增益介质，利用黑磷作为可饱和吸收剂（BPSA），证明了暗脉冲多波长锁模光纤激光器。通过增加泵浦功率并小心旋转偏振控制器（PC），可以实现自启动的暗脉冲。产生了五条多波长的激光线，其恒定的通道间距很小，为0.6 nm。测得的基本重复率为1 MHz，脉冲持续时间为3.46 ps。在9.89 mW的输出功率下，计算出的脉冲能量为9.89 nJ，而光信噪比（OSNR）高达74.8 dB，这证实了暗脉冲序列的稳定性。