| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a periodically poled optical waveguide comprising a nonlinear optical crystalline material having poled optical domains slanted with respect to direction of propagation of light within the waveguide. <P>SOLUTION: Light reflected from slanted poled optical domains does not couple efficiently back into the optical waveguide, which facilitates reduction of back reflection towards a semiconductor laser source coupled to the waveguide. Reduction of back reflection facilitates stable operation of the semiconductor laser source. A method of manufacturing a periodically poled optical waveguide having slanted poled domains is also provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
