Xuan Li, Shanghong Zhao, Zihang Zhu, Kun Qu, Tao Lin, Shilong Pan. Frequency-octupled phase-coded signal generation based on carrier-suppressed high-order double sideband modulation[J]. Chinese Optics Letters, 2017, 15(7): 070603
- Chinese Optics Letters
- Vol. 15, Issue 7, 070603 (2017)
Fig. 1. Proposed frequency-octupled phase-coded signal generation system.
Fig. 2. Output optical spectra of (a) the integrated modulator, and the upper and bottom QPSK modulators and (b) the Pol.
Fig. 3. Waveforms of the 2 Gbit/s, 21.92 GHz phase-coded signal when the voltage of the coding signal is (a) 1.5 and (b) 2 V, (c) the extracted phase shifts from (a) and (b).
Fig. 4. (a) Waveform of the 5 Gbit/s, 21.92 GHz phase-coded signal, (b) the extracted phase shift, and (c) the autocorrelation. Inset: zoom-in on the peak of the autocorrelation.
Fig. 5. Waveforms of the 2 Gbit/s phase-coded signal with frequency of (a) 16.48 and (b) 29.76 GHz, (c) the extracted phase shifts from (a) and (b).
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