An environmentally sealed waveguide can be fabricated in accordance with the invention by the provision of an adhesive seal between a portion of the interior surface of the second sleeve surrounding an unremoved portion of the cladding and an immediately underlying portion of {HEAD ~ a tubular, environmentally protective jacket} that has been disposed coaxially over {TAIL ~ the waveguide core} and cladding 
An environmentally sealed waveguide can be fabricated in accordance with the invention by the provision of an adhesive seal between a portion of the interior surface of the second sleeve surrounding an unremoved portion of the cladding and an immediately underlying portion of { HEAD ~ a tubular , environmentally protective jacket } that has been disposed coaxially over { TAIL ~ the waveguide core } and cladding
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