Radiative coupling offers an alternative to the well-known principle of coupling by evanescent mode fields. Although the entire coupler structure will not suffer from radiation losses, the modes of individual waveguides can be leaky. In this case the mode fields oscillate in the coupling region thus allowing for remote coupling. Combining radiative coupling with the nonreciprocal properties of magneto-optic waveguides seems to be a promising line of investigation towards the realization of integrated optical isolators and circulators. New design for such devices is proposed and critically discussed.

Date Published: 10 January 1996
PDF: 7 pages
Proc. SPIE 2695, Functional Photonic and Fiber Devices, (10 January 1996); doi: 10.1117/12.229964

Published in SPIE Proceedings Vol. 2695:
Functional Photonic and Fiber Devices
S. Iraj Najafi; Mario Nicola Armenise, Editor(s)