1 November 2008 Mirrored line-of-sight input nodes for embedded optical waveguides
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Optical Engineering, 47(11), 115005 (2008). doi:10.1117/1.3028334
A novel method for passive coupling of light to optical communication links embedded in composite structures has been explored. The use of 45-deg-angled mirrors integrated directly in poly-(methylmethacrylate) fibers as an input node coupling technique was characterized under conditions of varying refractive index. Mirrors were integrated into the fiber through polishing of the endface to a 45-deg angle and then thermal evaporation of Ag metal. To explore angular tolerances and sensitivity to alignment errors, the efficiency of the node was characterized as a function of source position and angle of incidence. Coupling loss as low as -0.39 dB was measured for normal incidence while the input node was immersed in a fluid with refractive index of 1.33. Ray tracing simulations were used to model the coupling of light to fabricated input nodes and showed good agreement with experiments.
Michael E. Teitelbaum, Danny O'Brien, Eric D. Wetzel, Keith W. Goossen, "Mirrored line-of-sight input nodes for embedded optical waveguides," Optical Engineering 47(11), 115005 (1 November 2008). https://doi.org/10.1117/1.3028334

Optical fibers



Fiber lasers


Refractive index

Light sources

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