Numerical aperture of multimode fibers with curvature: a new theory formula

Guangyu He; Yuxing Chen; Enyun Qi

doi:10.1117/12.252212

24 September 1996 Numerical aperture of multimode fibers with curvature: a new theory formula

Guangyu He, Yuxing Chen, Enyun Qi

Proceedings Volume 2895, Fiber Optic Sensors V; (1996) https://doi.org/10.1117/12.252212
Event: Photonics China '96, 1996, Beijing, China

Abstract

Numerical aperture is an important parameter in design, manufacturing and application of optical fiber and optical fiber sensor. Numerical aperture of multimode fibers with curvature was rarely investigated. Fu Huaijie e. t. only concluded for numerical aperture of incoming ray on X_o equals 0, y_o equals 0 of optical fiber end surface. Actually, numerical aperture of different incoming point is different, because optical fiber cylindrical symmetrical character was destroyed, the concluded equation doesn't have universal significance. In this paper we derive the numerical aperture equation of bending plane ray, using scaler quality proximate theory and ray equation. We show our conclusion and discuss its significance.

Citation Download Citation

Guangyu He, Yuxing Chen, and Enyun Qi "Numerical aperture of multimode fibers with curvature: a new theory formula", Proc. SPIE 2895, Fiber Optic Sensors V, (24 September 1996); https://doi.org/10.1117/12.252212

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