AI Article Synopsis
- The study focuses on the importance of uniformity in high-density free-space optical interconnects, which use multiple channels in an array for better performance.
- The researchers used rigorous coupled wave analysis to evaluate the off-axis diffraction efficiency of Fresnel lenses, finding significant nonuniformity that traditional scalar theory did not predict.
- They determined that polarization sensitivity had little effect in the f-number range of f/2.9 to f/10.2, and their findings were reinforced by experimental data.
Article Abstract
Parallel high-density free-space optical interconnects typically relay multiple channels in an array configuration; thus, they require good uniformity across their aperture for optimum performance. Rigorous coupled wave analysis is used to determine the throughput off-axis diffraction efficiency for Fresnel lenses within a diffractive imaging relay. The rigorous results are compared with scalar theory and show a significant nonuniformity not predicted by scalar theory. However, the polarization sensitivity is found to be negligible for the f-numbers considered (f/2.9 to f/10.2). These results are supported by experiment.
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| http://dx.doi.org/10.1364/ao.44.001200 | DOI Listing |
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