Transmission of 200 Tb/s (375 × 3 × 178.125 Gb/s) PDM-DFTS-OFDM-32QAM super channel over 1 km FMF

Ming LUO; Qi MO; Xiang LI; Rong HU; Ying QIU; Cai LI; Zhijian LIU; Wu LIU; Huang YU; Wei DU; Jing XU; Zhixue HE; Qi YANG; Shaohua YU

doi:10.1007/s12200-015-0555-2

Front. Optoelectron. ›› 2015, Vol. 8 ›› Issue (4) : 394 -401. DOI: 10.1007/s12200-015-0555-2

RESEARCH ARTICLE

Transmission of 200 Tb/s (375 × 3 × 178.125 Gb/s) PDM-DFTS-OFDM-32QAM super channel over 1 km FMF

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Abstract

A few-mode fiber (FMF) is designed to support three spatial modes (LP₀₁, LP_11a, and LP_11b) and fabricated through plasma chemical vapor deposition (PCVD)and rod-in-tube (RIT) method. Using PDM-DFTS-OFDM-32QAM modulation, wavelength division multiplexing, mode multiplexing, and coherent detection, we successfully demonstrated 200 Tb/s (375 × 3 × 178.125 Gb/s) signal over 1 km FMF using C and L bands with 25 GHz channel spacing. After 1 km FMF transmission, all the tested bit error rates (BERs) are below 20% forward error correction (FEC) threshold (2.0 × 10⁻²). Within each sub-channel, we achieved a spectral efficiency of 21.375 bits/Hz in the C and L bands.

Keywords

few-mode fiber (FMF) / mode multiplexing / coherent detection

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Ming LUO, Qi MO, Xiang LI, Rong HU, Ying QIU, Cai LI, Zhijian LIU, Wu LIU, Huang YU, Wei DU, Jing XU, Zhixue HE, Qi YANG, Shaohua YU. Transmission of 200 Tb/s (375 × 3 × 178.125 Gb/s) PDM-DFTS-OFDM-32QAM super channel over 1 km FMF. Front. Optoelectron., 2015, 8(4): 394-401 DOI:10.1007/s12200-015-0555-2