| 摘要 |
The invention relates to an optical regenerator for a differential phase modulated data signal which comprises, in addition to a unit for bit-by-bit gauge leveling, a unit for the regeneration of the phase of individual symbo ls of the differential phase modulated data signal. After the bit-by-bit gau ge leveling, the data signal that is preset in amplitude is divided into a f irst and a second data signal. Phase errors of individual signals are detect ed for the first data signal in a phase error detection unit, are transforme d into a correction signal, and are conveyed to a phase error correction uni t. The second data signal is corrected in the phase error correction unit, d epending on the correction signal conveyed thereto in the phase of said data signal, in such a way that a differential phase modulated data signal, rege nerated in amplitude and in phase, is delivered at the output of the correct ion unit.
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