Micromechanical based variable optical attenuator having moving walls with sloped V shaped wall stops outside central optical fibre section

摘要

The variable optical attenuator (1) is based on micro mechanical structures and has two moving walls (5,6) between optical fibres (3,4). The wall stops (7,8) are sloped with respect to the movement direction so as to form a V notch when approaching the optical fibres.