8 March 2018 Investigation of CSRZ code in FSO communication
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A cost-effective carrier-suppressed return-to-zero (CSRZ) code generation scheme is proposed by employing a directly modulated laser (DML) module operated at 1.5 μm wavelength. Furthermore, the performance of CSRZ code signal in free-space optical (FSO) link transmission is studied by simulation. It is found from the results that the atmospheric turbulence can deteriorate the transmission performance. However, due to have lower average transmit power and higher spectrum efficient, CSRZ code signal can obtain better amplitude suppression ratio compared to the Non-return-to-zero (NRZ) code.
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Zhike Zhang, Zhike Zhang, Mingchao Chang, Mingchao Chang, Ninghua Zhu, Ninghua Zhu, Yu Liu, Yu Liu, } "Investigation of CSRZ code in FSO communication", Proc. SPIE 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 106975F (8 March 2018); doi: 10.1117/12.2307703; https://doi.org/10.1117/12.2307703

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