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A novel Fourier technique for calculating fiber-to-LED coupling efficiency with lateral and longitudinal misalignments

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2 Author(s)
Shih-Cheng Wang ; Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA ; Ingram, M.A.

Alignment tolerance is a very desirable quality for a low cost optical connector. Sensitivity to misalignment depends on a number of parameters such as emitter directivity, fiber core radius, fiber numerical aperture, and emitter size. In this paper, we present a novel Fourier technique to calculate the amount of power coupled into a large core fiber for various parameter values and longitudinal and lateral misalignments. This technique can be 100 times faster on a computer compared to the brute force numerical integration method.

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Lightwave Technology, Journal of  (Volume:14 ,  Issue: 10 )