Incorporated bragg filter temperature compensated optical waveguide device.

摘要: A temperature compensated embedded grating optical waveguide light filtering device includes an fiber having elongated core in which is guided toward a portion of predetermined limited length that has therein multitude elements extending with substantially equal longitudinal spacing normal to the axis and collectively constituting reflects, propagating path reaching elements, wavelength within narrow range about central determined by index refraction material as influenced strains applied grating, back into for propagation opposite original direction. Each end attached different one two compensating members made materials such coefficients thermal expansion relative another apply magnitude varies manner changes are attributable compensate those grating.