7 May 2013 Demonstration of 40  Gbit/s all-optical return-to-zero to nonreturn-to-zero format conversion with wavelength conversion and dual-channel multicasting based on multiple cross-phase modulation in a highly nonlinear fiber
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Abstract
We propose and experimentally demonstrate all-optical return-to-zero (RZ) to nonreturn-to-zero (NRZ) format conversion by using multiple cross-phase modulation (MXPM) in a highly nonlinear fiber. The proposed all-optical format converter can perform simultaneously wavelength conversion and dual-channel signal multicasting. This is achieved by properly filtering two broadened probe spectra induced by MXPM between the RZ signal and continuous-wave double probe lights. We also study experimentally wavelength tunability for the proposed format converter at 40  Gbit/s , which is feasibly achieved by varying the central wavelengths of the double probe lights. Our results show that a wide operation wavelength range of 24 nm is obtained. By monitoring eye diagrams, the converted 40  Gbit/s NRZ signals can have an extinction ratio of 10.9 dB and the Q -factor of 6.1, respectively. Moreover, the proposed scheme is simple and robust, which is promising for high-speed optical fiber communication applications.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Zhan-Qiang Hui, Jian-Guo Zhang, Jia-Min Gong, Meng Liang, Mei-Zhi Zhang, Yi Yang, Feng-Tao He, Ji-Hong Liu, "Demonstration of 40  Gbit/s all-optical return-to-zero to nonreturn-to-zero format conversion with wavelength conversion and dual-channel multicasting based on multiple cross-phase modulation in a highly nonlinear fiber," Optical Engineering 52(5), 055002 (7 May 2013). https://doi.org/10.1117/1.OE.52.5.055002 . Submission:
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