Title :
Use of multimode interference couplers to broaden the passband of wavelength-dispersive integrated WDM filters
Author :
Soole, J.B.D. ; Amersfoort, M.R. ; Leblanc, H.P. ; Andreadakis, N.C. ; Rajhel, A. ; Caneau, C. ; Bhat, R. ; Koza, M.A. ; Youtsey, C. ; Adesida, I.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
We describe how multimode interference couplers (MMI) may be used to broaden and flatten the passband of integrated wavelength-dispersive filters. We discuss the approach and demonstrate its effectiveness with a passband-broadened InP arrayed waveguide filter operating at 1.5 μm.
Keywords :
III-V semiconductors; indium compounds; integrated optics; light interference; optical communication equipment; optical couplers; optical dispersion; optical waveguide filters; wavelength division multiplexing; 1.5 micron; InP; InP arrayed waveguide filter; multimode interference coupler; passband broadening; wavelength-dispersive integrated WDM filter; Arrayed waveguide gratings; Couplers; Etching; Filtering theory; Filters; Gaussian processes; Interference; Passband; Waveguide theory; Yttrium;
Journal_Title :
Photonics Technology Letters, IEEE
