A5090562035- Adaptive optics and wavefront sensing
- Optical Systems and Laser Technology
- Optical Wireless Communication Technologies
- Remote Sensing and LiDAR Applications
- 3D Surveying and Cultural Heritage
- Optical Coherence Tomography Applications
- Advanced optical system design
- 3D Shape Modeling and Analysis
- Optical measurement and interference techniques
In wavefront sensorless adaptive optics (WFS-less AO) systems, stochastic parallel gradient descent (SPGD) is the primary optimization method for correcting distortions. However, as intensity of atmospheric turbulence interference increases, fixed gain coefficient SPGD algorithm results in significant decreases convergence speed and precision. Moreover, inclined to local optima, thus failing satisfy requirements real-time distortion correction. To address these issues, this paper introduces...
Instead of acquiring the previous aberrations an optical wavefront with a sensor, sensor-less (WFSless) adaptive optics (AO) systems compensate for distortion by optimizing performance metric directly. The stochastic parallel gradient descent (SPGD) algorithm is pervasively adopted to achieve optimization. In this work, we incorporate CoolMomentum, method optimization Langevin dynamics simulated annealing, into SPGD. Numerical simulations reveal that, compared state-of-the-art SPGD variant,...
The pyramid wavefront sensor (PWS) presents numerous advantages, such as high energy utilization, exceptional spatial resolution, and adjustability. Precise calibration of the pupil's position size in advance is essential for accurately extracting slope information from captured pupil image by PWS. What we believe to be a novel method proposed using corrector enhance sharpness images An experimental setup crystal light modulator (SLM) established validate this method. Both physical...
The correction of wavefront aberrations in sensorless (WFS-less) adaptive optical (AO) systems requires control algorithms that can ensure rapid convergence while maintaining effective capabilities. This paper proposes a novel algorithm based on the RUNge Kutta optimizer (RUN) for WFS-less AO enables quick and efficient small aberrations, as well larger aberrations. To evaluate speed capabilities system RUN algorithm, we constructed simulated an experimental setup with 97-element deformable...