Patent ID: 6236556
Filing Date: 2001-05-22
Classification: H03J

Abstract:
A tuning head for use with a variable capacitor comprising:a coupler comprising;a first coupler portion;a second coupler portion disposed at a first position relative to said first coupler portion;a gap between said first coupler portion and said second coupler portion;a first fiber locating structure associated with said first coupler portion;a second fiber locating structure associated with said second coupler portion; andsaid first coupler portion fixed relative to said second coupler portion to maintain alignment of said first fiber locating structure and said second fiber locating structure;a first optical fiber supported by said first fiber locating structure;a second optical fiber supported by said second fiber locating structure, wherein said first and second optical fibers are optically coupled across said gap when said gap is not obstructed;an obstruction member movable with respect to said coupler and adapted to fit within said gap to selectively obstruct said optical coupling of said first and second optical fibers; anda movement mechanism adapted to create relative motion between said obstruction member and said coupler to control selective obstruction of said gap by said obstruction member.