Automatic maximum-minimum search method for accurate PDL and DOP characterization

作者：Shi Yongqiang^*; Yan Lianshan; Yao X Steve

来源：Journal of Lightwave Technology, 2006, 24(11): 4006-4012.

DOI：10.1109/JLT.2006.883121

• degree of polarization (DOP)
• polarization
• polarization-dependent loss (PDL)
• maximum-minimum search

A fully automatic deterministic maximum-minimum search method for fast accurate polarization-dependent loss (PDL) and degree of polarization (DOP) characterization is described. It is shown theoretically, based on a three-dimensional (3-D) surface model, that the method can unambiguously determine PDL and DOP values. Because it measures PDL and DOP values according to their, definitions and without the need for scanning over a large number of polarization states or engaging in extensive intermediate calculations, this method provides the attractive features of high speed, wide measurement range, wavelength insensitivity, and calibration-free operation. The new PDL/DOP characterization method was experimentally demonstrated in a prototype instrument using an in-line polarization controller with ultralow activation loss and PDL.

• 出版日期2006-11