| 摘要 |
<p>Wavelength division multiplexer comprising a switching matrix (18), of the N to 1 type, containing several successive stages (18a, 18b) of controllable optical couplers (20) interconnected as a treelike structure and means of modulation (24) connected to the output of the switching matrix (18), N sources (10, 12, 14, 16) each emitting a continuous light beam of particular wavelength onto an input of the matrix, and a control circuit (22) connected to the couplers and provided in order to control the latter so as to select P wavelengths from the N available wavelengths.
<??>Application to data transmission in an optical network.
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