9 February 2009 Generation of M-ary signals using a single Mach Zehnder interferometer
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A method is presented for generating M-ary signals by introducing direct digital driving combined with a single Multi-Electrode Mach-Zehnder interferometer. It is characterized by using two-level driving signals and thus eliminating the need for complex analog driving circuits. Example of generating square 16-QAM constellation is given. It is shown that using a total of 10 electrode segments achieves close-to-ideal performance.
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Yossef Ehrlichman, Yossef Ehrlichman, Ofer Amrani, Ofer Amrani, Shlomo Ruschin, Shlomo Ruschin, } "Generation of M-ary signals using a single Mach Zehnder interferometer", Proc. SPIE 7218, Integrated Optics: Devices, Materials, and Technologies XIII, 72180L (9 February 2009); doi: 10.1117/12.808741; https://doi.org/10.1117/12.808741

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