WIDE PASSBAND OPTICAL INTERLEAVER

摘要

A wide passband optical interleaver includes a first optical splitter, having a first output terminal and a second output terminal. A first optical route is coupled to the first output terminal. A second optical route is coupled to the second output terminal. A delay is coupled on the second optical route. A second optical splitter having two input terminals is receiving the first optical route and the second optical route. A plurality of optical filter respectively having transmission coefficients rho_i is coupled to the first optical route and the second optical route. The transmission coefficients rho_i are determined by satisfying a desired quantity of effective group delay ratio T, defined as $T=\sum _iS_i\frac{1-{\mathrm{rho}}_i}{1+{\mathrm{rho}}_i},\mathrm{where}S_i\mathrm{is}+1\mathrm{or}-1.$ where S_i is +1 or -1.