Title :
Writing buried waveguide structures: comparing ultrafast and deep-ultraviolet lasers
Author :
Coric, D. ; Wei, M. ; Herman, P.R. ; Bhardwaj, R. ; Corkum, P.B. ; Rayner, D.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
Summary from only given. Ultrafast (UF) and deep UV F/sub 2/ lasers both drive strong photosensitivity responses that yield useful refractive-index changes in the range of 10/sup -4/ to 10/sup -2/. The UF lasers produced a larger overall refractive index, simply because higher average power was available in a small focal volume than for the excimer F/sub 2/-laser beam. However, the overall efficiency of generating similar waveguide structures was nearly identical for both laser approaches when the refractive-index change was normalized by the laser power and the scanning speeds.
Keywords :
excimer lasers; fluorine; high-speed optical techniques; laser materials processing; optical fabrication; optical focusing; optical waveguides; refractive index; F/sub 2/; excimer F/sub 2/-laser beam; higher average power; laser power; overall refractive index; refractive changes; refractive-index change; scanning speeds; small focal volume; strong photosensitivity responses; waveguide structures; Glass; Nonlinear optics; Optical pulses; Optical refraction; Optical variables control; Optical waveguides; Solid lasers; Ultrafast optics; Waveguide lasers; Writing;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1033516
