Abstract
We have investigated mode conversion in a taper waveguide used in a planar multi-branch waveguide optical power divider designed for fundamental mode operation and fabricated by Ti-diffusion into a z-cut LiNbO3 substrate. With an appropriate aspect ratio and index distribution in the taper, mode conversion loss into a higher-order mode can be maintained under 5%.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. Bélanger, G.L. Yip and M. Haruna, Passive planar multibranch optical power divider: some design considerations. Applied Optics 22 (1983) 2383–2389.
D. Marcuse, Radiation losses of tapered dielectric slab waveguides. BSTJ 49 (1970) 273–290.
H. Yajima, Theory and applications of dielectric branching waveguides. Symposium Proceedings on Optical and Acoustical Microelectronics, Poly. Inst. of New York (1974) pp. 339–359.
W.K. Burns and A.F. Milton, Mode conversion in planar dielectric separating waveguides. IEEE Journal of Quantum Electronics QE-11 (1975) 32–39.
D. Marcuse, Theory of Dielectric Waveguides. Academic Press (1974).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bélanger, M., Yip, G.L. Mode conversion analysis in a single-mode planar taper optical waveguide. Appl. Sci. Res. 41, 305–314 (1984). https://doi.org/10.1007/BF00382463
Issue Date:
DOI: https://doi.org/10.1007/BF00382463