Patent ID: 11899333
Assignee: NOKIA SOLUTIONS AND NETWORKS OY
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 25:
26. The apparatus of claim 24, wherein, the electronic controller is connected to:
deliver a second modulating drive voltage to the first of the Electro-Absorption Modulators of a second Mach-Zehnder Interferometer of the parallel-nested pair such that the optical carrier passing through the first Electro-Absorption Modulator to the first arm of the second Mach-Zehnder Interferometer has one of the three or more different levels of optical phase and optical amplitude modulation, and,
deliver a second paired drive voltage to the second of the Electro-Absorption Modulators in the second arm of the second Mach-Zehnder Interferometer of the parallel-nested pair such that the optical carrier passing through the second Electro-Absorption Modulator to the second arm of the second Mach-Zehnder Interferometer is reduced to substantially null amplitude.