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OPTICAL FUNCTIONAL ELEMENT, METHOD FOR MANUFACTURING WAVEGUIDE GRATING AND WAVEGUIDE GRATING OBTAINED BY THE MANUFACTURING METHOD
OPTICAL FUNCTIONAL ELEMENT, METHOD FOR MANUFACTURING WAVEGUIDE GRATING AND WAVEGUIDE GRATING OBTAINED BY THE MANUFACTURING METHOD
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机译:光学功能元件,制造波导光栅的方法以及由该制造方法获得的波导光栅
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摘要
PROBLEM TO BE SOLVED: To provide an optical functional element, the method of manufacturing a waveguide grating and the waveguide grating obtained by the same manufacturing method with which the refractive index modulation of about 10-2 is obtained and the inexpensive and high-performance waveguide grating or the like is obtained by a relatively simple method.;SOLUTION: At the time of forming an optical waveguide region on a substrate by a vapor phase deposition method, the refractive index of the optical waveguide region is controlled by adjusting film formation conditions, and after the optical waveguide region having the desired refractive index has been formed, the optical waveguide region is irradiated with a laser beam and locally heated, the refractive index decided by the composition is resumed and thus, the optical waveguide region having the different refractive index is obtained.;COPYRIGHT: (C)2002,JPO
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