Computer generated complex filter for an all optical and a digital optical hybrid correlator
نویسندگان
چکیده
We present results of a correlation filter utilising a computer generated hologram using an analogue ferroelectric liquid crystal spatial light modulator (SLM). The SLM amplitude modulates light and can induce a 0/π phase shift, which is equivalent to modulating along the real axis. Two pixels are combined into a macropixel using a phase detour technique enabling full complex modulation. The method is used as the filter for a conventional optical correlator and in a digital/optical hybrid correlator.
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