FREE-SPACE ABERRATION-CORRECTED DIFFRACTION GRATING DEMULTIPLEXER FOR APPLICATION IN DENSELY-SPACED, SUBNANOMETER WAVELENGTH ROUTED OPTICAL NETWORKS

摘要

The operation of a free-space aberration corrected concave grating demultiplexer for applications in densely-spaced wavelength routed networks at 1.5 μm is described. Near-diffraction-limited performance was obtained in the wavelength range of 24 nm (over 60 channels) with channel spacing of 0.4 nm.