| 摘要 |
<p>The present invention relates to a device for wavelength selective phase control of a signal at a predetermined wavelength (μi) in a wavelength multiplexed optical signal, which comprises an input port (25, 105, 209, 307) for inputting the wavelength multiplexed optical signal, a splitting means (11, 101, 201, 301) for splitting the input wavelength multiplexed optical signal into the signal at the predetermined wavelength (μi) and a signal comprising of substantially the remaining wavelengths in the multiplex, a phase control element (37, 119, 221, 315, 317) for phase control of one of the two splitted signals, a combining device (51, 103, 201, 301) for combining the splitted phase-controlled signal and the other splitted signal in order to achieve a wavelength multiplexed wavelength selectively phase-controlled optical signal, and an output port (71, 115, 213, 311) for outputting the wavelength multiplexed wavelength selectively phase-controlled optical signal. A switch comprising at least one device of said kind and a method for wavelength selective phase control are likewise comprised in the present invention.</p> |
