Our new paper titled “Amplitude and phase retrieval with simultaneous diversity estimation using expectation maximization” has been published in OSA JOSA A. The paper can be accessed through DOI.
Applied Optics Paper Published
Our new paper “Automated alignment of a reconfigurable optical system using focal-plane sensing and Kalman filtering” has been published in OSA Applied Optics DOI.
SPIE Optics + Photonics
We attended SPIE Optics and Photonics conference in San Diego, CA. Joyce Fang presented her paper “State Estimation in Optical System Alignment using Monochromatic Beam Imaging” in Optical Design and Systems Engineering session. Dmitry Savransky presented his paper on “Blind Source Separation
SPIE DSS 2015
We attended SPIE DSS 2015 Defense, Security and Sensing conference in Baltimore, MD. Joyce Fang presented her poster Automated Optical System Alignment and Low Order Wavefront Sensing in the poster session.
Aspect Ratio of the Ellipses
The relationship between the aspect ratio and tip-tilt parameters. A third order 2D-polynomial is used to fit the surface.
Automated Alignment of Optical System
A schematic shows how our automated alignment system works: (click to see better image) The image in our simulation shows a deformed ellipse. We use Gaussian ellipse fitting method to extract useful information from the image, then use them in