We investigate polarization-locked vector solitons (PLVSs) arising in an all-polarization-maintaining (PM) soliton fiber laser mode-locked by a carbon nanotube. The laser can operate stably in both Q-switched and mode-locked states with different pump power. Under the PLVS condition, we observe a string of peak-dip-pair sidebands after polarization-resolving measurement, indicating the strong and regular energy exchange between the two polarized orthogonal components, which evidently distinguishes this all-PM fiber laser from conventional single-mode fiber-based vector cavities. By dispersion compensating, vector dissipative solitons are also successfully obtained. The cavity structure is greatly simplified and stabilized by a hybrid fiber component and shows excellent long-term stability.

我们研究由碳纳米管锁模的全偏振保持（PM）孤子光纤激光器中产生的偏振锁定矢量孤子（PLVS）。激光器可以在具有不同泵浦功率的Q切换和锁模状态下稳定运行。在PLVS条件下，我们在进行偏振分辨测量后观察到一串峰-倾角对边带，表明两个偏振正交分量之间的强而有规律的能量交换，这显然将这种全PM光纤激光器与传统的单模区别开了基于光纤的矢量腔。通过色散补偿，也可以成功获得矢量耗散孤子。混合纤维成分大大简化并稳定了空腔结构，并显示了出色的长期稳定性。