Coherent beam combining of phased fiber laser array with pointing error correction using light intensity gradient trap [0.03%]
基于光强梯度陷阱的相位激光阵列指向误差校正及相干合成研究
Likang Pan,Ran Yang,Jinjin Yu et al.
Likang Pan et al.
To solve the problem of coherent beam combining in multi-aperture arrays with large pointing errors, a control strategy based on the light intensity gradient trap is proposed. This method preprocesses the detected light intensity informatio...
Analysis on optical coherence tomography images to detect irregularities and restoration on paper-based artwork [0.03%]
光学相干层析成像在纸质艺术品检测及修复中的分析研究
Hendrik Nieuwboer,Camilla Baskcomb,Marco Bonesi et al.
Hendrik Nieuwboer et al.
Image analysis techniques were developed and used on optical coherence tomography (OCT) images for the analysis of restoration on paper-based artwork. Three etchings were imaged using an 840 nm portable OCT system from Lumedica and analysed...
Single-field-of-view misalignment solution method based on map sensitivity matrix [0.03%]
基于地图灵敏度矩阵的单视场偏移校正方法
Bangkun Zhu,Xiaoquan Bai,Shuaihui Wang et al.
Bangkun Zhu et al.
As scientific demands advance, future astronomical telescopes will require larger apertures to improve precision and detection depth. However, larger apertures pose greater alignment challenges for monolithic and segmented telescopes. Accur...
Sheng Sun,Pengbin Liu,Jingfang Hu et al.
Sheng Sun et al.
Wide-field inspection, nano detection, and real-time observation are essential for investigating biomolecular interaction processes. Surface plasmon resonance microscopy (SPRM) is a label-free, real-time, and nano-imaging method that is wid...
Jeffrey R Chen,Guangning Yang,Mark A Stephen et al.
Jeffrey R Chen et al.
Speckle effects particularly impact the performance of compact lidars. The surface roughness and slope spread a received laser pulse to contain Mt temporal speckle cells, distorting the pulse shape and degrading the centroid-based time-of-f...
Jan Provazník,Petr Marek,Julien Laurat et al.
Jan Provazník et al.
Quantum non-Gaussian states are crucial for the fundamental understanding of non-linear bosonic systems and simultaneously advanced applications in quantum technologies. In many bosonic experiments, the important non-Gaussian quantum featur...
Range walk error correction for MPPC array-based high-precision 3D imaging [0.03%]
基于MPPC阵列的高精度三维成像中的步长误差校正方法研究
Rui Wang,Linhai Huang,Yuanmeng Ban et al.
Rui Wang et al.
The multi-pixel photon counter (MPPC) array-based 3D imaging is a promising technology for remote sensing. However, variations in target reflectivity can introduce range walk error (RWE) during threshold discrimination, limiting imaging per...
Ravneel Prasad,Emanuele Viterbo,Arthur Lowery
Ravneel Prasad
In long-haul optical communication systems, the Kerr-induced fiber nonlinearities affect the signal fidelity and are driven by the intensity fluctuations along the fiber. In dispersion-unmanaged systems, these intensity fluctuations grow an...
Integrating polarization diversity into 3 × 3 coupler passive demodulation for interferometric fiber-optic sensors [0.03%]
基于三通道耦合器的保偏光纤干涉型传感器被动解调方法
Hao Hu,Qiaobo Wang,Xin Lai et al.
Hao Hu et al.
In this paper, polarization diversity is integrated into a 3 × 3 coupler-based passive demodulation system for the first time to mitigate polarization-induced fading (PIF) in interferometric fiber-optic sensors (IFOSs). This study investig...
Generalized computational framework for phase image reconstruction in structured illumination digital holographic microscopy [0.03%]
结构照明数字全息显微镜相位图像重建的通用计算框架
Sofía Obando-Vásquez,Raul Castaneda,Rene Restrepo et al.
Sofía Obando-Vásquez et al.
Correct demodulation and phase compensation are integral in digital holographic microscopy (DHM) with structured illumination (SI), i.e., SI-DHM, to reconstruct super-resolved phase images from raw SI-DHM holograms. The overall performance ...