Vorrichtung zum Überlagern optischer Signale mit unterschiedlichen Wellenlängen

摘要

The invention relates to a device for superposing optical signals with different wavelengths, comprising an input free beam coupler (1) and an output free beam coupler (26) between which a light guide grid (24) is located. Said input free beam coupler (1) is provided with at least two input light guide units (12, 21) on the input side. An output light guide unit (37) with several output light guides (29 to 36) is connected to the output free beam coupler (26) on the output side. The aperture areas of the input light guide units (12, 21) are arranged and dimensioned in relation to the aperture areas of the output light guides (29 to 36) in such a way that each output light guide (29 to 36) of the output light guide unit (37) can be acted upon by at least two optical signals with wavelengths which are guided in the input light guide units (12, 21). The multiplex function provided by the inventive device enables the output light guides (29 to 36) to be acted upon equally and with a high degree of efficiency by at least two different wavelengths.