Characterization of attachment techniques for single mode devices

For single mode devices intended for deployment in telecommunications applications, not only does the initial placement accuracy need to meet the tolerance described above, but the tolerance is required to be as tight over a wide range of environmental conditions, and for a long lifetime. In order to use the extremely sensitive position measurement capabilities afforded by interferometry, we also developed a test method using high-finesse Fabry-Perot interferometers. By monitoring shifts in the transmitting wavelength of the interferometer, highly accurate length changes can be measured