Elimination of Optical Fiber Breaks in Stainless Steel Packages for LiNbO3Optical Modulator Devices

Failure Case Study for Loose Tube Jacketed Optical Fibers

“…The problem of fiber extruding from tightly jacketed commercial fibers was reported previously with respect to the significant difference in thermal deformation of the outer jackets, which is dependent on the type of material [2]. Here, the failure in the loose tube jacketed fibers was investigated.…”

“…Engineering problems related to mechanical integrity in optical fiber devices have been investigated to estimate and ensure the long-term reliability of the devices during ordinary use. More severe demands from marine and terrestrial fiber communication systems, and recently from satellite systems, have resulted in the present highly reliable and stable states of optical fiber devices [1][2][3][4]. Standards for such devices are also established based on huge amounts of experimental data from device and system manufacturers [5].…”

Thermal Analysis of Jacketing Materials for Commercial Optical Fibers

“…Further, because active devices, such as lasers and modulators, must be assured resistance over a wide temperature range between -40 and 70°C, the UV-cured acrylate and the hytrel promise to become major jacketing materials. Previous reports on the reliability issue for optical devices supported the fact that such jacketed fibers are usable enough to provide highly reliable devices [2][3][4].…”

Mechanical Reliability of LiNbO3Optical Modulators Hermetically Sealed in Stainless Steel Packages

“…The fiber jacketed with uv-cured resin materials (0.4 mm outer diameter, Fujikura UV-400) was used. These fibers were known to be significantly improved against possible fiber breakage due to thermal contraction of the jacket materials [7,8]. The glass fiber surface was coated with a Ni layer and further with a Au layer using an electroless plating technique.…”