Error analysis and optimal design of polarization calibration unit for solar telescope<sup>

Error analysis and optimal design of polarization calibration unit for solar telescope

Hou Jun-Feng^{^†}, Wang Dong-Guang, Deng Yuan-Yong, Sun Ying-Zi, Zhang Zhi-Yong

(color online) Relations of calibration error and intensity instability. x axis is time, y axis is variations of each element in RMS of with time during a day.