Arbitrary waveform generation device and method based on integer-order time domain Talpot effect
An arbitrary waveform and generating device technology, applied in the field of arbitrary waveform generating devices, can solve the problems of difficult modulation of expected signals, too fast optical pulse rate, etc., and achieve the effects of improving energy utilization, reducing complexity, and facilitating operation
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Embodiment 1
[0029] Such as figure 1 As shown, the present embodiment is based on the arbitrary waveform generating device of the integer-order time-domain Talbot effect, including a narrow-linewidth continuous optical laser 1, a radio frequency signal generator 2, a push-pull Mach-Zehnder modulator 3, a dispersive optical fiber 4, and a photoelectric Detector 5. A narrow-linewidth CW laser 1, a push-pull Mach-Zehnder modulator 3, a dispersion fiber 4, and a photodetector 5 are connected in sequence. The radio frequency signal generator 2 is connected with a push-pull Mach-Zehnder modulator 3 . The narrow-linewidth CW laser 1 continuously generates a Gaussian light pulse sequence with a repeating period. The radio frequency signal generator 2 generates multiple channels of periodic analog radio frequency signals with different frequencies. The Gaussian optical pulse sequence and the periodic analog radio frequency signal are simultaneously fed into the push-pull Mach-Zehnder modulator 3...
Embodiment 2
[0036] Corresponding to the above-mentioned arbitrary waveform generation device based on the integer-order time-domain Talbot effect, this embodiment also provides a method for generating an arbitrary waveform based on the integer-order time-domain Talbot effect, including the following steps,
[0037] S1: The Gaussian optical pulse sequence generated by the narrow linewidth continuous optical laser and the periodic analog RF signal generated by the RF signal generator are simultaneously added to the push-pull Mach-Zehnder modulator;
[0038] S2: In the push-pull Mach-Zehnder modulator, the Gaussian optical pulse sequence samples the periodic analog RF signal to obtain the periodic optical pulse sequence of the instantaneous frequency of the periodic analog RF signal; the push-pull Mach-Zehnder modulator samples the periodic analog RF signal Partial carrier suppression modulation;
[0039] S3: The periodic optical pulse sequence enters the dispersion fiber whose first-order d...
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