Title :
Fabrication of optical elements in glass with fs laser pulses
Author :
Itoh, Kazuyoshi ; Watanabe, Wataru ; Li, Yan ; Asano, Takashi ; Yamada, Koji
Author_Institution :
Dept. of Material & Life Sci., Osaka Univ., Suita Osaka, Japan
Abstract :
In summary, we fabricated a 2 mm long directional coupler with the small core diameter of 2 μm and succeeded in splitting one beam into two beams of equal powers. We fabricated the Fresnel lens by embedding voids inside silica glass. We also recorded holograms by two beam interference of femtosecond laser pulses. We hope that integrated. photonic devices and systems can be created by used of these techniques.
Keywords :
high-speed optical techniques; holographic interferometry; integrated optics; laser materials processing; lenses; optical beam splitters; optical directional couplers; optical fabrication; optical glass; 2 micron; 2 mm; Fresnel lens; equal power optical beam splitters; femtosecond laser pulses; fs laser pulses; glass optical elements fabrication; holograms; optical directional coupler; permanent refractive index change; photonic devices; self-diffraction; self-focusing; silica glass; small core diameter; two beam interference; voids; Couplers; Glass; Laser theory; Lenses; Optical device fabrication; Optical materials; Optical pulses; Optical waveguides; Ultrafast optics; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7500-9
DOI :
10.1109/LEOS.2002.1133938
