Patent ID: 6396980
Filing Date: 2002-05-28
Classification: G02B

Abstract:
A multiplexor/demultiplexor comprising:an input first collimator and an output second collimator coaxially enclosed within a protective soldering sleeve; the first collimator including a ferrule with an input first optical fiber and an output second optical fiber embedded within a pair of corresponding V-shaped grooves in the ferrule; a gradient index rod lens attached to a front portion of said ferrule, said rod lens defining an angled end face confronting the ferrule; a filter applied to the lens; a guiding sleeve attachably enclosing said ferrule; and a protective sleeve attachably enclosing both the lens and the guiding sleeve; wherein air gap is formed between the protective sleeve and epoxy joints among the ferrule, the filter and the lens to buffer the collimator from environmental stress or mechanical or thermal impact.