Abstract
The standing wave method has been widely used in the determination of the damping properties of viscoelastic solids in the 100–10 000 Hz range and loss coefficients have been obtained either by the experimental observation of the decay modulus or the half‐power bandwidth of each resonant peak. This paper investigates by this method the behavior of optical fibers to mechanical vibrations. It is found that for plastic clad fibers the phase velocities are largely dependent on the tension and mass density while for other fibers tested the system behaves as a stiff string whereby the modulus of elasticity takes on a more pronounced role. Experimental data are presented to illustrate the differences in loss factors and phase velocities for several optical fiber configurations. [Work sponsored by NUSC.]
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