Simultaneous dual-wavelength reconstruction based on low rank mixed-state and phase modulation

Xue Dong; Xingchen Pan; Cheng Liu; Jianqiang Zhu

doi:10.1117/12.2506290

15 November 2018 Simultaneous dual-wavelength reconstruction based on low rank mixed-state and phase modulation

Xue Dong, Xingchen Pan, Cheng Liu, Jianqiang Zhu

Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 1096459 (2018) https://doi.org/10.1117/12.2506290
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

Abstract

We propose a single shot dual-wavelength phase retrieval method based on low rank mixed-state and phase modulation imaging. Both the amplitude and phase of each wavelength can be reconstructed simultaneously from the recorded diffraction pattern. Proof-of-principle experiment was demonstrated to show its capability in solving the crucial problem of measuring the high energy laser beam of multi-wavelength inside the target cabin. Because of the extremely high energy and limited inner space of high vacuum, no other techniques can realize this kind of measurement by now. This novel method provides an efficient way for fundamental and third harmonic wave diagnostics in high power laser systems, including near-field phase and far-field intensity distribution, power distribution, frequency conversion efficiency etc. Because this method only needs a phase plate and a CCD, it can be integrated into a compact device with convenient use.

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Xue Dong, Xingchen Pan, Cheng Liu, and Jianqiang Zhu "Simultaneous dual-wavelength reconstruction based on low rank mixed-state and phase modulation ", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 1096459 (15 November 2018); https://doi.org/10.1117/12.2506290

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KEYWORDS

Diffraction

Reconstruction algorithms

Wave propagation

Coherence imaging

High power lasers

Phase modulation

Sensors

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