Study of Initial Phase Calibration and Multi-Wavelength Response of Phase-Only Spatial Light Modulator

Dongmei, 刘冬梅 Liu; Juan, 刘娟 Liu; Zhao, 张昭 Zhang; Jinghui, 谢敬辉 Xie; Yongtian, 王涌天 Wang

doi:10.3788/lop49.041203

Cited by 3 publications

(1 citation statement)

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“…The SLM executed modulation on different spectral components through loading drive counts (0~4095), which led to the realization of spectral shaping 24 . The response characteristic of SLM's pixels should be calibrated to achieve high spectral control accuracy 25,26 . An optical power meter was used to measure the pulses from the spectral shaper corresponding to the 0~4095 drive counts.…”

Section: Design and Evaluation Of Fingerprint-like Characteristic Spe...mentioning

confidence: 99%

Optical fiber dispersion measurements based on spectral shaping and frequency-to-time mapping

Jiang

Xiao

et al. 2022

Thirteenth International Conference on Information Optics and Photonics (CIOP 2022)

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To achieve high-precision dispersion measurement of optical components, a new method based on spectral shaping and frequency-to-time mapping was proposed, which was experimentally demonstrated and verified. In this research, a modelocked laser and a home-made spectral shaper were used to realize the spectral shaping of laser pulse with fingerprint-like characteristic. After transmitted through a dispersive medium, the temporal profile of the laser pulse became a scaled replica profile of the spectrum owing to the frequency-to-time mapping of chirped pulse. A Taylor-expanded chromatic dispersion model and least-square method were adopted for data analysis, which realized a measurement of 1-km fiber to the second-order dispersion with an error of 0.43%. The precision of the dispersion measurement was greatly enhanced by constructing a fingerprint-like characteristic spectrum. The experimental results showed that this method has better robustness and fidelity for different types of optical fiber, as well as various dispersive components in high-power laser system.

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Section: Design and Evaluation Of Fingerprint-like Characteristic Spe...mentioning

confidence: 99%

Optical fiber dispersion measurements based on spectral shaping and frequency-to-time mapping

Jiang

Xiao

et al. 2022

Thirteenth International Conference on Information Optics and Photonics (CIOP 2022)

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Absolutely interferometric calibration of phase liquid crystal spatial light modulators using honeycomb gratings composited with Billet-split Fresnel zone plates

Wang,

Shan,

Zhang

2024

Appl. Opt.

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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.

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基于梅斯林对切光子筛的相位型液晶空间光调制器的干涉校准

Wang Gangwei,

Zhou Mengyu,

Zhang Junyong

et al. 2024

中国激光

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Study of Initial Phase Calibration and Multi-Wavelength Response of Phase-Only Spatial Light Modulator

Cited by 3 publications

References 0 publications

Optical fiber dispersion measurements based on spectral shaping and frequency-to-time mapping

Optical fiber dispersion measurements based on spectral shaping and frequency-to-time mapping

Absolutely interferometric calibration of phase liquid crystal spatial light modulators using honeycomb gratings composited with Billet-split Fresnel zone plates

基于梅斯林对切光子筛的相位型液晶空间光调制器的干涉校准

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