Optical waveguide e.g. for fiber-optics communication system, has optical waveguides supported on body with difference in mechanical expansion taking place

摘要

An optical waveguide body (8) has a body (9) and one or more optical waveguides (10), which are carried by the body (9) so that a difference in the mechanical expansion takes place along the light-propagation direction, and assumes discrete variable values along this direction.