Light polarization state evaluation method and device, application, electronic equipment and medium
A technology of polarization state and evaluation method, which is applied in the field of optical fiber depolarization, polarized light, and polarization degree.
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Embodiment 1
[0045] refer to figure 1 , the present embodiment provides a method for evaluating the polarization state of light, comprising the following steps:
[0046] Step S102, collecting data points on the polarization state of the light to be evaluated on the Poincar sphere;
[0047] Specifically, the polarization state analyzer 8 is used to collect data points of the polarization state of the light to be evaluated on the Poincar sphere. Any elliptically polarized light can use two azimuth angles to represent the polarization state, and the two azimuth angles can be represented by longitude and latitude on the sphere on the Poincar sphere, so a point on the Poincar sphere can represent a polarization state, especially for unpolarized light, its polarization state changes randomly with time, so it needs to be accurately described in time series.
[0048] Points on the equator of the Poincare sphere represent linearly polarized light with different vibration directions; the north pol...
Embodiment 2
[0073] This embodiment provides an application of a method for evaluating the polarization state of light in evaluating the performance of a depolarization device. The method for evaluating the polarization state of light is the method described in Embodiment 1. No more details here.
Embodiment 3
[0075] This embodiment also provides a light polarization state evaluation device, refer to Figure 5 , this embodiment is a virtual device corresponding to Embodiment 1, and the device includes:
[0076] The collection module 10 is used to collect the data points of the polarization state of the light to be evaluated on the Poincar sphere;
[0077] A separation module 20, configured to separate the polarization state data points according to the eight hexagrams of the spatial Cartesian coordinate system;
[0078] Fitting module 30, is used for carrying out Delaunay triangular part algorithm fitting to the polarization state data point in each hexagram limit;
[0079] The first calculation module 40 is used to calculate the sum S of the areas of the triangles within the eight hexagrams obtained by fitting. Delaunay ;
[0080] The second calculation module 50 is used to convert S Delaunay Divide by the total area of the unit Poincar sphere S 0 , to obtain the degree of p...
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