Optical fiber with tunable birefringence using pressurized liquid capillaries
A single-mode optical fiber segment incorporating liquid-filled holes parallel to the core that are sealed at each end. Heating the liquid produces stress in the fiber and thereby increases the birefringence level. Alternatively the holes may be filled and sealed at a temperature lower than the temperature at which the fiber will be operated, the temperature difference determining the stress level for given hole characteristics.
The United States of America as represented by the Secretary of the Air Force
G G
G02B G02B
inventional additional
Gerald T.
Moore