Title :
Waveguides in BK7 optical glass fabricated by transverse electromigration of silver ions
Author :
Chao, Mingcher ; Lee, Chin C.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA
fDate :
6/1/1990 12:00:00 AM
Abstract :
Low-loss (0.1 dB/cm at 632.8 nm) waveguides fabricated in BK7 optical glass using the transverse electromigration of Ag/sup +/ ions are discussed. With a migration time of 1.5 h at 320 degrees C, waveguides of depths from 3.0 to 5.0 mu m were obtained with various index changes. The inverse WKB method was used to deduce the index profile. The profile was further confirmed by a comparison of experimental and theoretical mode indices and intensity distributions.<>
Keywords :
electromigration; optical losses; optical waveguides; optical workshop techniques; refractive index; silver; 1.5 hrs; 3 to 5 micron; 320 degC; 632.8 nm; Ag/sup +/; BK7 optical glass; glass waveguides; index changes; index profile; intensity distributions; inverse WKB method; low-loss waveguides; migration time; mode indices; transverse electromigration; waveguide fabrication; Electromigration; Glass; Optical attenuators; Optical films; Optical losses; Optical waveguides; Particle beam optics; Silver; Substrates; Voltage;
Journal_Title :
Photonics Technology Letters, IEEE
