| 摘要 |
A procedure for creating an optical output signal (S') in which two optical signal parts (S1, S2) of different frequencies are created from an optical signal (S) of a fixed frequency ( nu 0), whereby one of the optical signal parts (S1, S2) has a data signal (D) impressed and both optical signal parts (S1, S2) together form the optical output signal (S'), the optical signal (S) is fed to two branches (4, 5), two optical sideband carriers ( nu 0-fm, nu 0+fm) are created in one of the two branches (4, 5) with regard to the optical signal (S), one sideband carrier of which is removed, the optical signal (S) in one of the two branches (4, 5) has a data signal (D) impressed and both divided optical signal parts (S1, S2) are then brought back together to form one single optical output signal (S'). In this way the effort required for creating both optical signal parts and/or the optical output signal can be reduced.
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