1 February 1992 Very compact connector for coupling optical fibers to high-power laser
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This work presents the description of a very compact optical connector for coupling high-power laser radiation (Nd:YAG) to optical fibers. GRIN-rod lenses have been used because they have several characteristics (such as small dimensions, plane and parallel faces with focus near the exit face) which make them suitable for fiber components. A special coupling unit to connect the microlens with the fiber has been designed, thus obtaining a very compact and stable element. Furthermore, the insertion of a conventional prefocusing lens at the laser exit has been provided, in order to obtain better coupling efficiency and to increase misalignment tolerances of the GRIN rod-fiber component A theoretical analysis by means of an optical design program, together with the description of the experimental characterization of the coupling system, are reported.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Riccardo Falciai and Tania Pascucci "Very compact connector for coupling optical fibers to high-power laser", Proc. SPIE 1580, Fiber Optic Components and Reliability, (1 February 1992); doi: 10.1117/12.135392; https://doi.org/10.1117/12.135392


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