Chinese Optics Letters, Vol. 18, Issue 7, 070001 (2020)
Highly flexible Nyquist pulse generation based on multi-wavelength control
Bingjian Zhang, Kan Wu*, Tianzhu Zhang, Siqi Liu, and Jianping Chen
- Shanghai Institute for Advanced Communication and Data Science, State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
By controlling the wavelength and power of multiple light sources, we have realized a highly flexible Nyquist pulse generation scheme, in which the pulse repetition frequency, pulse multiplication factor, waveform envelope shape, and duty cycle are all tunable. By modulating the 3.2 GHz RF signal, we experimentally generated Nyquist pulses with repetition rates of 6.4 GHz and 9.6 GHz, a rectangular wave with a duty cycle of 0.26, and a sawtooth wave with a duty cycle of 0.52.
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