Abstract

The microbending of optical fibers causes some additional transmission losses. In this paper, the theoretical and experimental results on the microbending characteristics for doubly clad (W-type) fibers are described. A simple approximation in which W-type fibers are considered as equivalent singly clad fibers is employed to calculate the additional losses due to microbending. It is shown that the additional losses of W-type fibers depend on the optical wavelength. Further, it is shown that the structural imperfections of the guide can be also considered a kind of microbending which affects the spectral loss characteristics of W-type fibers.

© 1977 Optical Society of America

Transmission characteristics of multimode W-type optical fiber: experimental study of the effect of the intermediate layer

K. Mikoshiba and H. Kajioka
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Steady-state characteristics of multimode W-type fibers

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Numerical solution of power flow in multimode W-type optical fibers

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