G. Neumann et al., A NEW INTEGRATED OPTICAL-MODE STRIPPER CONFIGURATION - NUMERICAL-ANALYSIS AND DESIGN, IEEE photonics technology letters, 8(7), 1996, pp. 909-911
A novel integrated-optical mode stripper configuration is proposed and
analyzed numerically by the BPM. Its operation is based on the coupli
ng of all higher order modes into regions with higher refractive index
adjacent to the optical waveguide. It is shown that a high transmissi
on of the fundamental mode and a high suppression of higher order mode
s can be realized at lambda = 1.3 mu m and lambda = 1.5 mu m.