| http://www.w3.org/ns/prov#value | - At the exit end of the element holder, the holder's throughbore extends along an element axis that is at a predetermined non-zero angle, .alpha., relative to the coupler axis of the couplerbody.The optical element, which may be a conventional optical element used to modify an optical signal transmitted through the coupler, such as a filter or polarizer, is mounted into the angled portion of the th
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