Small Form Factor Optical Fiber Connectors: Performance Comparisons

Conventional duplex fiber optic connectors, such as the SC Duplex, achieve the required alignment tolerances by threading each optical fiber through a precision ceramic ferrule. The ferrules have an outer diameter of 2.5 mm, and the resulting fiber-to-fiber spacing (or pitch) of a duplex connector is approximately 12.5 mm. Since the outer diameter of an optical fiber is only 125 μm, it should be possible to design a significantly smaller optical connector. Smaller connectors with fewer precision parts could dramatically reduce manufacturing costs and have the potential to open up new applications such as fiber to the desktop.

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