Characteristics of phase-only modulation using a reflective liquid crystal on si licon device | Zendy

Aiming Ge | Zendy; Sui Zhan | Zendy; Xu Ke-shu | Zendy

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Characteristics of phase-only modulation using a reflective liquid crystal on si licon device

Author(s) -

Aiming Ge,

Sui Zhan,

Xu Ke-shu

Publication year - 2003

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.52.2481

Subject(s) - liquid crystal on silicon , spatial light modulator , modulation (music) , phase modulation , optics , phase (matter) , liquid crystal , materials science , liquid crystal display , optical modulator , amplitude modulation , amplitude , digital micromirror device , laser , computer science , optoelectronics , frequency modulation , physics , phase noise , telecommunications , acoustics , bandwidth (computing) , quantum mechanics

This paper discusses the characteristics of phase-only modulation using a reflec tive liquid crystal on silicon(LCOS). The 2×2 Jones matrix method is used as a computational tool to theoretically analyze phase modulation characteristics. Th e system has been constructed for testing of amplitude and phase, in which a He- Ne laser as the light source, testing the wave front phase using an interferomet er. The LCOS displays as a liquid crystal spatial light modulator and its drivin g circuit is controlled by a computer, digital data are sampled by CCD. We have tested the phase modulation of 1024×768 LCOS displays. Given the state of input and output polarizations ,the result of testing our theories by experiment sho w consistency ,so LCOS displays can be used as phase-only modulator.

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