Title :
Coupling of modes analysis of resonant channel add-drop filters
Author :
Manolatou, C. ; Khan, M.J. ; Fan, Shanhui ; Villeneuve, Pierre R. ; Haus, H.A. ; Joannopoulos, J.D.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
fDate :
9/1/1999 12:00:00 AM
Abstract :
The operation principle of resonant channel add-drop filters based on degenerate symmetric and antisymmetric standing-wave modes has been described elsewhere using group theoretical arguments. In this paper, the analysis is carried out using coupling of modes in time. A possible implementation of such a filter is a four-port system utilizing a pair of identical single-mode standing wave resonators. The analysis allows a simple derivation of the constraints imposed on the design parameters in order to establish degeneracy. Numerical simulations of wave propagation through such a filter are also shown, as idealized by a two-dimensional geometry
Keywords :
coupled mode analysis; optical communication equipment; optical filters; optical resonators; optical waveguide filters; symmetry; wavelength division multiplexing; antisymmetric standing-wave modes; degenerate symmetric standing-wave modes; design parameters; four-port system; identical single-mode standing wave resonators; modes analysis; operation principle; resonant channel add-drop filters; two-dimensional geometry; wave propagation; Finite difference methods; Optical feedback; Optical filters; Optical resonators; Optical ring resonators; Optical surface waves; Optical waveguides; Resonance; Resonator filters; Wavelength division multiplexing;
Journal_Title :
Quantum Electronics, IEEE Journal of
