Document Type and Number:
Japanese Patent JPS5526443
Kind Code:
B1
Abstract:
Operations such as modulation, switching, mode conversion and the like are performed on light propagating in a thin film waveguide by a liquid crystal member overlaying a portion of the waveguide. The material of the crystal is such that its index of refraction in the direction of wave propagation, and normal thereto, is varied by application of an electric field, thereby producing a variation in the waveguiding properties of the waveguide. Using the same principles, mode filtering is achieved by overlaying a portion of the waveguide with an anisotropic material.
Application Number:
JP6585272A
Publication Date:
July 14, 1980
Filing Date:
June 29, 1972
Export Citation:
International Classes:
G02F1/1333; (IPC1-7): G02B5/30; G02F1/13
Other References:
LASER TECHNOLOGY SECTION#M1=1968