Title :
Type II femtosecond laser writing of Bragg grating waveguides in bulk glass
Author :
Zhang, Haijun ; Eaton, Shane M. ; Li, Jie ; Herman, Peter R.
Author_Institution :
Dept. of Electr., Univ. of Toronto, Comput. Eng. And Inst. For Opt. Sci., Ont.
Abstract :
Low-loss singlemode waveguides with inherent Bragg grating responses were laser written for the first time in a single process step. A periodic array of refractive index voxels were imprinted point-by-point in bulk borosilicate glass by a type II ultrafast laser photosensitivity interaction, yielding permanent grating-waveguides with 1550 nm Bragg reflection
Keywords :
Bragg gratings; high-speed optical techniques; integrated optics; laser beam machining; optical fabrication; optical waveguides; 1550 nm; Bragg grating waveguides; bulk glass; refractive index voxels; singlemode waveguides; type II femtosecond laser writing; ultrafast laser photosensitivity;
Journal_Title :
Electronics Letters
