Title :
Proton-exchanged LiNbO/sub 3/ optical waveguides using stearic acid
Author :
Pun, E.Y.B. ; Zhao, S.A. ; Loi, K.K. ; Chung, P.S.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
Proton-exchanged optical waveguides have been fabricated in z-cut LiNbO/sub 3/ using a new proton source: stearic acid. These waveguides were characterized optically and were found to exhibit a step index profile with Delta n=0.118 measured at 0.633 mu m. The propagation losses were typically around 1.5 dB/cm, and the diffusion constant and the activation energy for the proton-exchange process were measured to be 5*10/sup 6/ mu m/sup 2//h and 69 kJ/mol, respectively.<>
Keywords :
ion exchange; lithium compounds; optical losses; optical waveguides; optical workshop techniques; organic compounds; 0.633 micron; 1.5 dB; LiNbO/sub 3/ optical waveguides; activation energy; diffusion constant; propagation losses; proton-exchange process; stearic acid; step index profile; Loss measurement; Nonlinear optics; Optical losses; Optical planar waveguides; Optical polymers; Optical waveguides; Planar waveguides; Propagation losses; Protons; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
