Adiabatically tapered directional coupling between dielectric waveguides
Article first published online: 7 DEC 2012
Copyright 1991 by the American Geophysical Union.
Volume 26, Issue 2, pages 579–582, March-April 1991
How to Cite
1991), Adiabatically tapered directional coupling between dielectric waveguides, Radio Sci., 26(2), 579–582, doi:10.1029/90RS00969., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 22 APR 1990
- Manuscript Received: 26 DEC 1989
Conventional dielectric dual-channel directional couplers used in integrated optics are subject to severe tolerance restrictions on the waveguide parameters, in order to guarantee nearly complete power transfer. These restrictions are relaxed considerably by tapering suitably both waveguides. Such adiabatically tapered couplers can be designed easily along the beam propagation method combined with the effective index method. Computer simulations confirm their advantage.