In this paper, the filtering problem of apodized rugates is solved by deriving first-order, as well as second-order, coupled-mode equations via the perturbation method of multiple scales. The ...

ODE Test Problems (OTP) is an object-oriented MATLAB/Octave package offering a broad range of initial value problems in the form of ordinary and differential-algebraic equations that can be used to ...

The second approach is an initial-value problem formulation, that uses backward integration of the coupled-mode equations. Comparison with the characteristic matrix method is made for the case of ...