Title :
Mode-coupling analysis of multipole symmetric resonant add/drop filters
Author :
Khan, M.J. ; Manolatou, C. ; Fan, Shanhui ; Villeneuve, Pierre R. ; Haus, H.A. ; Joannopoulos, J.D.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
fDate :
10/1/1999 12:00:00 AM
Abstract :
Time-dependent mode-coupling theory is used to analyze a type of resonant add/drop filter based on the excitation of degenerate symmetric and antisymmetric modes. Flat-top transfer functions are achieved with higher order filters that utilize multiple resonator pairs, designed to satisfy the degeneracy conditions. The resulting analytic expressions lead to an equivalent circuit and the transfer characteristics of the filter are related to standard L-C circuit designs
Keywords :
Butterworth filters; coupled mode analysis; equivalent circuits; optical communication; optical couplers; optical design techniques; optical resonators; optical waveguide filters; wavelength division multiplexing; Flat-top transfer functions; analytic expressions; degeneracy conditions; degenerate antisymmetric modes; degenerate symmetric modes; design; equivalent circuit characteristics; higher order filters; mode-coupling analysis; multiple resonator pairs; multipole symmetric resonant add/drop filters; resonant add/drop filter; standard L-C circuit designs; time-dependent mode-coupling theory; transfer characteristics; Coupling circuits; Crosstalk; Equivalent circuits; Filtering theory; Frequency; Planar waveguides; Resonance; Resonator filters; Transfer functions; Wavelength division multiplexing;
Journal_Title :
Quantum Electronics, IEEE Journal of
