1 citations · 1 across the 3 of their papers we have counts for
4 papers
Phase Retrieval using Nonlinear Curvature Sensing within Convergent Beams
Justin R. Crepp, Caleb G. Abbott, James Smous +2
Path-length diversity methods may be used for adaptive optics (AO) systems to retrieve phase and amplitude information by measuring intensity across multiple planes. Observations t…
Jitter Sensing and Control for Multi-Plane Phase Retrieval
Caleb G. Abbott, Justin R. Crepp, Brian Sands
The family of multi-plane phase retrieval sensors, such as the curvature and nonlinear curvature wavefront sensors (WFS), contain tip/tilt information embedded in their signals. We…
Centroiding and Extraction of Tip/Tilt Information from Nonlinear Curvature Wavefront Sensor Measurements
Caleb A. Abbott, Justin R. Crepp, Stanimir O. Letchev +1
The nonlinear curvature wavefront sensor (nlCWFS) uses multiple (typically four) out-of-focus images to reconstruct the phase and amplitude of a propagating light beam. Because the…
Performance of the Nonlinear Curvature Wavefront Sensor as a Function of Scintillation Strength
Stanimir Letchev, Justin R. Crepp, Caleb G. Abbott +3
Local amplitude aberrations caused by scintillation can impact the reconstruction process of a wavefront sensor (WFS) by inducing a spatially non-uniform intensity at the pupil pla…