In this paper, recent efforts to characterize the reliability of passive fiber optic interconnection components, such as, single mode connectors, fused-tapered couplers and wavelength division multiplexers are reviewed. These components, having been tested under a variety of mechanical and environmental conditions, showed no degradation in optical or mechanical performance.
Paul M. Kopera,
"Reliability Of Passive Fiber Optic Interconnects", Proc. SPIE 1174, Fiber Optics Reliability: Benign and Adverse Environments III, (15 January 1990); doi: 10.1117/12.963233; https://doi.org/10.1117/12.963233