High-performance polarization degree tester calibration device and calibration method

[0022] Such as figure 1 As shown, the calibration device consists of a narrow linewidth laser 1, polarization controllers 2, 4, 6, dispersion module 5, polarization beam splitter 3, polarization beam combiner 9, fiber couplers 7, 8, detectors 10, 11 , 12. The data processing and display module 13 is combined, and the frequency domain depolarization technology based on the polarization controller is adopted. By adjusting the polarization controller 2, the continuously adjustable polarization degree of the output light of the calibration device can be realized.

[0023] The core of the calibration device for the degree of polarization tester in the present invention is the frequency domain depolarization technology based on the polarization controller. By adjusting the polarization controller 2 of the main optical path, the polarization degree of the narrow linewidth laser can be changed conveniently and flexibly, and the Polarization tester for fast and precise calibration. ac...

[0030] On the basis of the above-mentioned embodiments, further, a high-performance calibration device for a degree of polarization tester is provided, which is characterized in that it consists of a narrow linewidth laser, three polarization controllers, a dispersion module, a polarization beam splitter, and a polarization beam combiner consists of a laser, two fiber couplers, three detectors, and a data processing and display module; the narrow linewidth laser is connected to the first polarization controller and one end of the polarization beam splitter in sequence, and the other end of the polarization beam splitter is divided into two , one end is connected to the second polarization controller, dispersion module, and one end of the first fiber coupler in turn, and the other is connected to the third polarization controller and one end of the second fiber coupler in turn, and the other end of the first fiber coupler is divided into two lines, one end Connect the first dete...