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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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Complete spatial characterization of an optical wavefront using a variable-separation pinhole pair.

David T Lloyd1, Kevin O'Keeffe, Simon M Hooker

  • 1Department of Physics, University of Oxford, Clarendon Laboratory, Oxford, UK. d.lloyd1@physics.ox.ac.uk

Optics Letters
|April 3, 2013
PubMed
Summary
This summary is machine-generated.

A new method measures optical wavefronts using interference patterns from scanning and static slits. This technique characterizes high harmonic radiation and can be applied to diverse light sources.

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Area of Science:

  • Optics and Photonics
  • Wavefront Sensing
  • Coherent Light Characterization

Background:

  • Accurate measurement of optical wavefronts is crucial for various applications.
  • Existing wavefront sensing techniques may have limitations in certain environments or with specific light sources.

Purpose of the Study:

  • To introduce a novel technique for measuring the transverse spatial properties of optical wavefronts.
  • To enable simultaneous recovery of intensity, phase, and spatial coherence information.

Main Methods:

  • Utilizes interference patterns generated by combining a scanning X-shaped slit with a static horizontal slit.
  • Analyzes a series of interference patterns to reconstruct wavefront properties.

Main Results:

  • Successfully demonstrated the technique by characterizing high harmonic radiation.
  • Recovered intensity and phase profiles from the interference data.
  • Obtained spatial coherence information from the same experimental setup.

Conclusions:

  • The presented method offers a versatile approach for wavefront characterization.
  • The technique is adaptable to a wide range of light sources beyond the demonstrated high harmonic radiation.