Wang Xinyue, Wang Ziyu
State Key Laboratory on Advanced Optical Communication Systems & Networks, Department of Electronics, Peking University, Beijing 100871, China.
Opt Express. 2010 Jan 4;18(1):49-55. doi: 10.1364/OE.18.000049.
In this letter, we propose a new method that uses the stress applying parts (SAPs) in the polarization maintaining fibers (PMFs) cladding to realize the self-alignment of the side-polished face and the slow axis. This method enables the polarizers to be fabricated directly onto PMFs, and there are no interruptions to the optical path and no internal interfaces to reflect light. The polarizers offer a high polarization extinction ratio (PER) and high temperature stability. Theoretical and experimental results show that the new method dramatically reduces the polarization axis alignment (PAA) error and increases the success rate of making side-polished PMF polarizers with PER > 23 dB from 18.8% to 65.0%.
在本信函中，我们提出了一种新方法，该方法利用保偏光纤（PMF）包层中的应力施加部分（SAP）来实现侧面抛光面与慢轴的自对准。这种方法能够直接在保偏光纤上制造偏振器，且光路无中断，也没有内部界面反射光。这些偏振器具有高偏振消光比（PER）和高温度稳定性。理论和实验结果表明，该新方法显著降低了偏振轴对准（PAA）误差，并将制作PER>23 dB的侧面抛光保偏光纤偏振器的成功率从18.8%提高到了65.0%。
