Physical realization of Schell‐model sources using a fast steering mirror

A simple optical system is built to quickly realize partially coherent sources for directed energy applications. The apparatus implements a recently developed technique in which any uniformly correlated or Schell‐model source can be generated by summing many statistically independent randomly tilted...

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Bibliographic Details
Published in:Microwave and optical technology letters 2017-11, Vol.59 (11), p.2731-2735
Main Authors: Hyde, Milo W., Bose‐Pillai, Santasri R., Xiao, Xifeng, Voelz, David G.
Format: Article
Language:English
Subjects:
Beams (radiation)
coherence
Fourier optics
random sources
Steering
Synthesis
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Summary:A simple optical system is built to quickly realize partially coherent sources for directed energy applications. The apparatus implements a recently developed technique in which any uniformly correlated or Schell‐model source can be generated by summing many statistically independent randomly tilted beams. This result means that only a tip‐tilt or fast steering mirror (FSM) is needed to realize Schell‐model sources, which in contrast to existing synthesis techniques, is both fast and flexible. A brief review of the theory necessary to understand and implement the tilt‐only synthesis technique is presented. The FSM apparatus is then described. Lastly, experimental results of a Schell‐model source are compared with theoretical predictions to validate both the synthesis technique and FSM apparatus.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.30818