Chinese Optics Letters, Volume. 23, Issue 9, 090601(2025)
Demonstration of high-capacity WDM long-haul transmission based on a long-span nested antiresonant nodeless fiber
Fig. 1. Experimental setup of the long-haul WDM coherent transmission system. ASE, amplified spontaneous emission noise; AOM, acoustic-optic modulator; OTBF, optical tunable bandpass filter; PC, polarization controller; PRBS, pseudo-random binary sequence; RRC, raised root cosine filter; CDC, chromatic dispersion compensation; FOE, frequency offset estimation; CPE, carrier phase estimation; DSP, digital signal processing; WSS, wavelength selection switch.
Fig. 3. Spectra of the WDM signal after different transmission distances.
Fig. 4. (a) Capacity of the system performance after 1000 km transmission. (b) Maximum distance per channel.
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Hui Chen, Xu Zhang, Siyue Jin, Honglin Ji, Qibing Wang, Lei Zhang, Jie Luo, Lei Wang, Yingjun Zhou, Junwen Zhang, Zhixue He, Nan Chi, Shaohua Yu, "Demonstration of high-capacity WDM long-haul transmission based on a long-span nested antiresonant nodeless fiber," Chin. Opt. Lett. 23, 090601 (2025)
Category: Fiber optics and optical communications
Received: Jan. 20, 2025
Accepted: May. 12, 2025
Published Online: Aug. 13, 2025
The Author Email: Zhixue He (hezhx01@pcl.ac.cn)