Self-assembled opal-clad waveguides with pseudophotonic bandgap (pseudo-PBG) at the fiber communication wavelength have been fabricated. For the opal cladding, high-quality colloidal silica spheres were coated on a rib-type waveguide. Theoretical and experimental results show that a pseudo-PBG exists near 1532-nm wavelength, where 10-μm-wide waveguides have a propagation loss of 36.1 dB/cm.
Bibliographical noteFunding Information:
Manuscript received May 28, 2004; revised September 29, 2004. This work was supported by a grant from 3M Co. and the University of Minnesota. The authors are with the Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455 USA (e-mail: firstname.lastname@example.org; email@example.com). Digital Object Identifier 10.1109/LPT.2004.839789
- Integrated optics
- Optical waveguides
- Photonic bandgap (PBG)
- Self-assembled photonic crystals (PCs)