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Target-based coherent beam combining of an optical phased array fed by a broadband laser source |
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| Authors: | Milo W. Hyde IV Jack E. McCrae Glenn A. Tyler |
| Affiliation: | 1. Department of Electrical and Computer Engineering, Air Force Institute of Technology, Dayton, OH, USA.;2. Department of Engineering Physics, Air Force Institute of Technology, Dayton, OH, USA.;3. The Optical Sciences Company, Anaheim, CA, USA. |
| Abstract: | The target-based phasing of an optical phased array (OPA) fed by a broadband master oscillator laser source is investigated. The specific scenario examined here considers an OPA phasing through atmospheric turbulence on a rough curved object. An analytical expression for the detected or received intensity is derived. Gleaned from this expression are the conditions under which target-based phasing is possible. A detailed OPA wave optics simulation is performed to validate the theoretical findings. Key aspects of the simulation set-up as well as the results are thoroughly discussed. |
| Keywords: | Atmospheric turbulence laser array laser beam combining speckle statistical optics wave propagation |