Abstract
The polarization‐independent liquid crystal (LC) phase modulators can greatly improve the efficiency and reduce the complexity of the optical system. However, it is difficult for the LC phase modulator to achieve both good low‐loss modulation and polarization‐independent properties. A LC phase modulator of single layer multi‐microdomain orthogonal twisted (MMOT) structure is proposed which may achieve good polarization independence and low loss in different phase depth. A lightcontrolled azimuth angle (LCAA) process based on the rotation effect of cholesteric liquid crystal (CLC) is developed for the fabrication of the single layer MMOT structure. The measurement results showed that the single layer MMOT LC phase modulator may get very low polarization dependence, about 3.52% under 2Ï€ phase modulation depth, with low loss. The device shows good potential application in optical communication, wearable device, and display.
Published Version
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