A Communication Experiment Using Mode Division Multiplexing with Phase Modulation-Coherent Detection

Table 1. Insertion loss of each mode port of PL
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Table 1. Insertion loss of each mode port of PL
Mode Insertion loss after back to backtransmission /dB Insertion lossafter 10 km FMFtransmission /dB
LP₀₁ 3.64 5.56
LP_11a 2.85 5.61
LP_11b 4.31 6.56
LP_21a 5.84 7.16
LP_21b 6.89 8.81
LP₀₂ 10.22 12.01

Table 2. Crosstalks of different modes in back-to-back connection of PLs

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Table 2. Crosstalks of different modes in back-to-back connection of PLs

Mode	Crosstalk /dB
Mode	Input LP₀₁	Input LP_11a	Input LP_11b	Input LP_21a	Input LP_21b	Input LP₀₂
Output LP₀₁		-20.20	-20.93	-31.81	-28.32	-31.67
Output LP_11a	-34.38		-19.4	-25.54	-20.61	-26.17
Output LP_11b	-24.55	-18.42		-29.22	-24.41	-25.06
Output LP_21a	-36.69	-24.5	-24.63		-18.53	-19.32
Output LP_21b	-34.52	-20.77	-19.94	-16.87		-18.16
Output LP₀₂	-23.05	-21.62	-19.96	-17.94	-18.22

Table 3. Crosstalk between different modes of PLs connected by 10 km optical fiber

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Table 3. Crosstalk between different modes of PLs connected by 10 km optical fiber

Mode	Crosstalk /dB
Mode	Input LP₀₁	Input LP_11a	Input LP_11b	Input LP_21a	Input LP_21b	Input LP₀₂
Output LP₀₁		-19.01	-19.51	-28.16	-23.66	-30.76
Output LP_11a	-29.26		-16.61	-25.06	-18.11	-24.51
Output LP_11b	-21.76	-17.56		-19.31	-21.91	-22.01
Output LP_21a	-29.81	-19.76	-22.71		-15.96	-17.41
Output LP_21b	-29.51	-18.86	-18.86	-15.31		-16.16
Output LP₀₂	-21.41	-20.56	-18.96	-17.51	-18.01

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Zhang Qiang, Guo Yubin, Chen Jiake, Hu Guijun. A Communication Experiment Using Mode Division Multiplexing with Phase Modulation-Coherent Detection[J]. Chinese Journal of Lasers, 2020, 47(3): 306001

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