G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/20 (2006.01) G02B 6/26 (2006.01) G02B 6/34 (2006.01) G02F 1/313 (2006.01)
Patent
CA 2168002
An optical directional coupler filter having at least two guides; an input guide and a coupled guide. The spacing between the guides and hence the interactive strength is tailored so as to provide ultralow sidelobe levels at a narrow spectral bandwidth. A formula has been derived with respect to the tapered shape function of the waveguides in order to arrive at the optimum results.
L'invention est un filtre pour coupleurs optiques directifs qui comporte deux guides au moins, un guide d'entrée et un guide couplé. L'espacement entre ces guides et, par conséquent, l'intensité de l'interaction sont choisis de façon à produire des lobes latéraux à niveaux ultrafaibles dans une bande spectrale étroite. Une formule a été dérivée en rapport avec la forme fuselée des guides de lumière pour obtenir les résultats optimaux.
Huang Wei-Ping
Little Brent
Wu Chi
de Wilton Angela C.
Nortel Networks Limited
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