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Free-space, dense WDM router based on a new concave grating configuration

By: Bayvel, P.; Churin, E.G.;

1998 / IEEE / 84-89900-14-0

Description

This item was taken from the IEEE Conference ' Free-space, dense WDM router based on a new concave grating configuration ' A 91/spl times/91 switchless wavelength router using a concave Littrow mount-based holographic grating is designed. Coupling losses for all channels, spaced by 0.33 nm, are within -0.9 dB. In this device, the coherent crosstalk due to aberrations and diffraction at the aperture leads to a negligible penalty.