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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

Spatially partially coherent beam parameter optimization for free space optical communications.

Deva K Borah¹, David G Voelz

¹Klipsch School of Electrical and Computer Engineering, New Mexico State University, Las Cruces, NM 88003, USA. dborah@nmsu.edu

|October 14, 2010

Summary

This summary is machine-generated.

Optimizing the coherence length of partially coherent beams improves free space optical communication performance. This research demonstrates significant reductions in outage probability, especially for shorter distances and wider beams.

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Area of Science:

Optical communication systems
Wave propagation in turbulent media

Background:

Free space optical communication is susceptible to atmospheric turbulence.
Beam coherence significantly impacts signal quality and reliability.

Purpose of the Study:

Investigate coherence length optimization for spatially partially coherent beams.
Analyze performance improvements in weak turbulence regimes.
Determine conditions for enhanced outage probability.

Main Methods:

Derivation of a series expression for the scintillation index.
Numerical simulations to validate performance gains.
Parametric study including curvature, distance, wavelength, and beamwidth.

Main Results:

Coherence length optimization yields significant improvements in outage probability.
Performance gains are most pronounced at shorter transmission distances and larger beamwidths.
Scintillation index is effectively managed through coherence control.

Conclusions:

Partial coherence offers a viable strategy to mitigate turbulence effects in optical links.
Optimizing beam coherence is crucial for robust free space optical communication.
The findings provide practical guidelines for system design and parameter selection.