Optical fiber refractometry by interference microscopy: a simplified method.
Index of refraction profiles of optical fibers are obtained by a new interference technique closely related to Mach-Zehnder microscope interferometry. Data are obtained from specially prepared samples using a conventional reflected light microscope. Excellent agreement is obtained with the results using the Mach-Zehnder method but at a considerable reduction in the cost and complexity of instrumentation.
Stone
J
J
Earl
H E
HE