| 摘要 |
<p>A cross-connect switchÄ100Ü for switching light signals arriving on N input optical fibersÄ110Ü to M out optical fibersÄ140Ü. The switch includes NxM mirror elementsÄ121, 123Ü arranged as N rows and M columns of mirror elementsÄ121, 123Ü. Each mirror element has a reflecting state and a non-reflecting state. In the reflecting state, each mirror element reflects light from a corresponding one of the input optical fibersÄ110Ü to a corresponding one of the out optical fibersÄ140Ü. Each mirror element is positioned in the non-reflecting state such that the mirror element does not intercept light from any of the input optical fibersÄ110Ü. All of the mirror elementsÄ121, 123Ü corresponding to a given input optical fiber are located on the same row and all mirror elementsÄ121, 123Ü corresponding to a given output optical fiber are located in the same column. The switch also includes a plurality of re-collimating lensesÄ131, 132Ü, one such re-collimating lensÄ131Ü is located between two of the mirror elementsÄ121, 123Ü in each of the rows of mirror elementsÄ121, 123Ü. Each re-collimating lens collimates light from the input optical fiberÄ110Ü corresponding to that row. The switch also includes one such re-collimating lensÄ132Ü between two of the mirror elementsÄ121, 123Ü in each of the columns of mirror elementsÄ121, 123Ü. <IMAGE></p> |
