光学学报, 2018, 38 (6): 0606008, 网络出版: 2018-07-09 复制并引用该论文  本文已被引 10 次  被引通知

图 & 表

图 1. 光子灯笼及其模式转换

Fig. 1. Photonic lantern and its mode conversion

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图 2. 接收信号峰峰值。 (a)调整前LP01; (b)调整前LP11a; (c)调整后LP01; (d)调整后LP11a

Fig. 2. Peak-to-peak value of received signals amplitude. (a) Value for LP01; (b) value for LP11a; (c) adjusted value for LP01; (d) adjusted value for LP11a

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图 3. IM-DD OFDM实验系统框图

Fig. 3. Structure of IM-DD OFDM experimental system

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图 4. OFDM信号子载波上比特加载数

Fig. 4. Subcarrier bit allocation profile for OFDM signals

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图 5. 单路信号发送光功率与误码率关系。(a) 背靠背; (b) 经过50 m长的OM4多模光纤

Fig. 5. Relationships between transmitted optical power and BER for one-channel signal. (a) BTB; (b) over OM4 MMF with the length of 50 m

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图 6. 2路信号发送光功率与误码率关系。(a) 入射光功率相同; (b) 入射光功率不同

Fig. 6. Relationships between transmitted optical power and BER for two-channel signals. (a) Same transmitted optical power; (b) different transmitted optical powers

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图 7. 接收端子载波星座图。(a) LP01端; (b) LP11a端

Fig. 7. Constellations of the subcarriers at receiving port. (a) LP01 port; (b) LP11a port

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表 1光子灯笼入射端口损耗

Table1. Insertion losses of photonic lanterndBm

Receiving port Sending port LP01 port LP11a port LP11b port LP01 port -16.5 -27.2 -29.5 LP11a port -29.1 -21.5 -20.1 LP11b port -28.1 -20.9 -22.1

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表 2实验系统参数

Table2. Experimental system parameters

Parameter Value Parameter Value Modulation format 32/16/4 QAM PIN detector bandwidth /GHz 1.5 IFFT/FFT size 64 points Fiber type OM4 OFDM symbols per frame 100 symbols Laser wavelength /nm 1550 Cyclic prefix length 16 points AWG sampling rate /( GSa·s-1) 2 DFB driving voltage 2.1Vpp DSO sampling rate /( GSa·s-1) 10 MMF length /m 50 Laser bandwidth /GHz 1.4 Amp /dB 10 DC voltage /V 12

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陈健, 黄青青, 张倩武, 王腾, 曾祥龙, 宋英雄, 李迎春, 张俊杰. 基于光子灯笼的正交频分/模分复用IM-DD多模光纤传输系统[J]. 光学学报, 2018, 38(6): 0606008. Jian Chen, Qingqing Huang, Qianwu Zhang, Teng Wang, Xianglong Zeng, Yingxiong Song, Yingchun Li, Junjie Zhang. Orthogonal Frequency Division/Mode Division Multiplexing IM-DD Multimode Fiber Transmission System Based on Photonic Lanterns[J]. Acta Optica Sinica, 2018, 38(6): 0606008.