| 摘要 |
<p>The coupler comprises one or more optical systems formed by or equivalent to a set of reflecting surfaces (4,5,6) whose sections are segments of ellipses having two by two a common focus (1A, 2A, 3A); each focus lies in the centre of the end face of an optical waveguide (1,2,3) able both to launch a light beam to be shared among other waveguides, and to collect either a light beam resulting from a sharing or more light beams to be combined. </p> |
