OPTICAL WAVEGUIDE PACKAGE, CASING FOR OPTICAL WAVEGUIDE PACKAGE, MANUFACTURING METHOD OF OPTICAL WAVEGUIDE PACKAGE, AND CHARACTERISTIC ADJUSTING METHOD OF OPTICAL WAVEGUIDE PACKAGE

摘要

PROBLEM TO BE SOLVED: To adjust characteristics of an optical waveguide element 20, such as an initial operating point, even after the optical waveguide element 20 has been installed in a casing 10, and the casing 10 has been sealed or has been left in a state close to a sealed state.;SOLUTION: The optical waveguide element 20 is installed in the casing 10 and the casing 10 (the casing main body and the lid 11) is sealed with welding and so on. A window portion 11a formed of quartz glass is arranged on the lid 11. An eximer laser beam is made to irradiate the predetermined region on the optical waveguide element 20 installed in the casing 10 through the window portion 11a.;COPYRIGHT: (C)2008,JPO&INPIT