Modelling of Optical Fiber Tapers
Since the development of relatively inexpensive glass fibers, optical
fiber communication has become a viable alternative to conventional electronic
communication. The field of optical fiber communication has become
known as "fiber optics." Pervasive in fiber optics is the need for
polarizers and couplers. One response to these needs is the fiber
taper. Fiber tapers can also be used as power concentrators and image
size reducers. The first step in understanding fiber tapers is to
model them analytically. For several different fiber tapers, exact
closed form solutions of the paraxial wave equation can be found.
In particular, the linear and quadratic tapers have been solved.
The quadratic taper is a good approximation to the taper formed by an axially
stretched heated fiber. Often polarizers and couplers are formed
by this method.
Date Modified January, 1998
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