A new opto-mechanical tool for coupling light into single-mode fiber optics from Siskiyou Corporation (Grants Pass, OR) offers a combination of high precision adjustment in a very compact package. Specifically, Siskiyou single-mode fiber couplers incorporate optics for focusing laser light into a FC connectorized single-mode fiber optic, together with tip/tilt mechanical adjustment to permit accurate positioning of the focused beam with respect to the fiber end.

The use of ultra-high resolution, differential adjusters (2.75 arc-second movement per 5° adjuster rotation), together with a mechanical design that decouples tip/tilt adjustment from focus, delivers the precision necessary to achieve optimum coupling efficiency into single-mode fibers in a very small volume. Alternately, the system can be used in reverse for high precision collimation of single-mode fiber output.

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