Abstract

The traditional interferometric calibration of phase spatial light modulators (SLM) based on interference fringes shift is easily disturbed due to environmental vibration. Here a kind of absolutely interferometric calibration of phase SLM is investigated to eliminate the disturbance using dual honeycomb gratings composited with Billet-split Fresnel zone plates (BsFZP), in which honeycomb gratings split an incident beam into three beams and the first two beams are interfered by BsFZP while the last beam is chosen as the absolute reference point. The experiments on both 532 and 632.8 nm incident wavelengths were separately carried out, and the measuring accuracy was proved by a SID4 wavefront sensor. The proposed high-accuracy calibration provided the basis for SLM application scenarios with high precision.

© 2024 Optica Publishing Group

Interferometric method for phase calibration in liquid crystal spatial light modulators using a self-generated diffraction-grating

José Luis Martínez Fuentes, Enrique J. Fernández, Pedro M. Prieto, and Pablo Artal
Opt. Express 24(13) 14159-14171 (2016)

Phase calibration of spatially nonuniform spatial light modulators

Xiaodong Xun and Robert W. Cohn
Appl. Opt. 43(35) 6400-6406 (2004)

Spatially resolved phase-response calibration of liquid-crystal-based spatial light modulators

Stephan Reichelt
Appl. Opt. 52(12) 2610-2618 (2013)

Spatial light modulator phase calibration based on spatial mode projection

Katherine Isabel T. Remulla and Nathaniel Hermosa
Appl. Opt. 58(21) 5624-5630 (2019)

Formation of anisotropic diffraction gratings in a polymer-dispersed liquid crystal by polarization modulation using a spatial light modulator

Akifumi Ogiwara and Takuya Hirokari
Appl. Opt. 47(16) 3015-3022 (2008)