Title :
High-performance metal-clad multimode interference devices for low-index-contrast material systems
Author :
Huang, J.Z. ; Hu, M.H. ; Fujita, J. ; Scarmozzino, R. ; Osgood, R.M., Jr.
Author_Institution :
Microelectron. Sci. Lab., Columbia Univ., New York, NY, USA
fDate :
4/1/1998 12:00:00 AM
Abstract :
Metal cladding is proposed for enhancing performance of multimode interference (MMI) devices for low-index-contrast material systems and numerically investigated by the beam propagation method (BPM). Metal-cladding eliminates spurious phase errors due to the Goos-Hahnchen shift and thus yields improved imaging. The application of this concept is demonstrated by the simulation of a 1/spl times/8 MMI-based wavelength router using a typical low-index-contrast polymer channel waveguide and the results show that the crosstalk is significantly improved.
Keywords :
integrated optics; light interference; metallic thin films; optical communication equipment; optical crosstalk; optical films; optical polymers; optical waveguides; refractive index; telecommunication network routing; 1/spl times/8 MMI-based wavelength router; Goos-Hahnchen shift; beam propagation method; crosstalk; high-performance metal-clad multimode interference devices; improved imaging; low-index-contrast material systems; low-index-contrast polymer channel waveguide; metal cladding; spurious phase errors; Circuit simulation; Coupling circuits; Crosstalk; Inorganic materials; Interference; Optical imaging; Optical waveguides; Polarization; Polymers; Wavelength routing;
Journal_Title :
Photonics Technology Letters, IEEE
