Wavelength grating router with output coupler

Details Wavelength grating router with output coupler Wavelength grating router with output coupler

G - Physics

02

B

G02B 6/26 (2006.01) G02B 6/12 (2006.01) G02B 6/28 (2006.01) G02B 6/34 (2006.01) H04J 14/00 (2006.01) H01S 5/026 (2006.01)

Patent

CA 2156336

The efficiency of an NxN waveguide grating router may be increased in many applications by incorporating at least one output waveguide, such as an (N+1)st waveguide, positioned for capturing second order diffraction optical energy from a free-space region in the router. The second order diffraction optical energy is delivered at a wavelength or at wavelengths corresponding to that wavelength or those wavelengths output on a particular associated one of the original N waveguide outputs for the router.

Dans de nombreuses applications, on peut accroître le rendement d'un routeur à réseau de guides de lumière N x N en incorporant à ce routeur au moins un guide de lumière de sortie, tel qu'un (N + 1)ème guide de lumière, monté de façon à capter les produits de diffraction lumineuse du deuxième ordre provenant d'une région d'espace libre dans le routeur. Ces produits de diffraction lumineuse du second ordre sont transmis à une ou des longueurs d'onde qui correspondent à la ou les longueurs d'onde du faisceau de sortie de l'un des N guides de lumière du routeur originel.

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