![]() ![]() At the exit of the snout bore, thick epoxy is applied to the fibre to cover the external fibre ferrule to the harness, cladding overlay and fibre cladding. Upon assembly, the ferrules are soldered to the casing wall and snout bore by applying a series of solder joint seals. The butterfly casing interface wall has a snout with a concentric hole bored to fit the ferrules on the fibre. The fibre is constructed with a ferrule interface, which is gold plated and pre-coated with solder. In the scheme of packaging, the fibre has to be interfaced to a package casing, commonly designed as a “butterfly” package. ![]() These methods will fix the end tip of an optical fibre to a sub-mount or substrate near the laser diode. Current methods of laser fibre interface demand that the fibres be fixed to the laser diodes' emitter facets by a compliant clip restraining V groove. The trends in delivering laser light into fibres for more efficient connectivity will put cost of packaging as the primary consideration for packaging laser diodes. The proliferation of laser diodes in the areas of optical networking, medical and spectroscopic instruments have placed greater demands on the way laser diodes are packaged and interfaced to fibre.
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