Amplitude, phase, and polarization control with a single spatial light modulator

Head, Stephen T.; Brown, Thomas G.; Gillmer, Steven R.; Ellis, Jonathan D.

doi:10.1117/12.2045965

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2018

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“…To access any arbitrary polarization on the Poincaré sphere without additional optics, this typically requires two SLMinteractions [10]. Combining beams that have interacted with differ ent parts of an SLM interferometrically gives arbitrary spa cial control over the phase and polarization of a light beam [11][12][13]. Alternatively, one can use cascaded interactions.…”

Section: Introductionmentioning

confidence: 99%

Complete polarization and phase control with a single spatial light modulator for the generation of complex light fields

Pena¹,

Andersen²

2018

Laser Phys.

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We present an optical system for the formation of arbitrary spatial polarization and phase patterns with a single spatial light modulator (SLM). Any such complex light beam can be generated by using three interactions with a computer controlled SLM. We achieved this by bouncing the beam three times in different areas on the SLM surface, and the cumulative interactions provide for any desired polarization and phase state imprinted on the output beam. The system can deliver high output power, since the only light loss arises from imperfect optical elements.

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