Spatial coupling efficiency of collimators based on gradient-index lens with an angle polish
Optics & Laser Technology(2023)
Abstract
•Proposed a new analytical method for determining the length of collimators based on a Gradient-index lens with an angle polish.•Beam-steering technology make the system less sensitive to misalignment and fabrication tolerance.•Among the three deviations of the coupling mismatch, the angular deviation has the greatest influence.
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Key words
Coupling efficiency,Return loss,Gradient-index lens,Beam-steering technology,Optical communication
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