Abstract

Passive channel waveguides with a number of widths (3–15 μm) have been fabricated, and the effective modal indices have been measured in the 0.4–0.8-μm wavelength range. The experimental results are correlated with the theoretical predictions. The 2-D index profile is found to be spatially separable namely, sech² in depth and sech², parabolic or step in width depending on the waveguide dimension.

© 1986 Optical Society of America

Analysis of optical channel waveguides and directional couplers with graded-index profile

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