| 摘要 |
<p>A fiber optic network (10) having a head-end station (12) to send signals to individual users (U). The fiber optic branches (14) one or more times and at each branch (14) there is an optical frequency filter (24) which allows certain wavelength channels to travel along one branch (14) and other wavelength channels to travel along another branch (14). The branching continues until one final branch (14) carries one optical frequency channel to one individual user (U).</p> |
