We report the fabrication of ion-exchanged channel waveguides in an Er-doped Na-modified BK-7 glass. The buried waveguides were elliptical in cross section, having approximate cross-sectional dimensions of 10 µm × 30 µm. Characterization of the optical properties of the waveguides revealed that they are single mode in the 10-µm dimension and multimode in the 30-µm dimension and exhibit a total waveguide loss, absorption plus scattering, of 0.8 dB/cm at 0.633 µm.
© 1991 Optical Society of America
Mahmoud M. Abouelleil, Gary A. Ball, William L. Nighan, and David J. Opal, "Low-loss erbium-doped ion-exchanged channel waveguides," Opt. Lett. 16, 1949-1951 (1991)