Multiple Temperature Insensitive Arrayed Waveguide Grating Module and The Manufacturing Method Thereof

摘要

in WDM communication systems, combined optical signals having different wavelengths, mainly in order to also separately optical waveguide lattice columns (AWG: Arrayed Waveguide Grating) to use it. The optical waveguide grating is less heat temperature is no wavelength selectivity as a function of temperature without the use of an external power source because it must operate at a constant temperature environment maintained by attaching a temperature control using an external power source because the wavelength selective characteristics sensitive to a change of the operating temperature The need for heat-dependent optical waveguide grating module has been abruptly spread. Even if a large number of optical waveguide grating circuit used to heat the optical waveguide formed heat grid circuit chip to produce a plurality of independent optical waveguide lattice modules in one column of the optical waveguide circuit chip column grid is very difficult. The invention has been implemented a number of independent temperature-independent composite temperature-independent optical waveguide including an optical waveguide grating heat heat grid module using a single optical waveguide grating circuit chip has a plurality of thermal heat the optical waveguide grating circuit formed