• Study On Optical Communications
  • Vol. 51, Issue 1, 230165-01 (2025)
Shan HU, Wei LI, Yingmei PAN, Tao ZENG*..., Ming LUO, Huang YU and Hao GUO|Show fewer author(s)
DOI: 10.13756/j.gtxyj.2025.230165 Cite this Article
Shan HU, Wei LI, Yingmei PAN, Tao ZENG, Ming LUO, Huang YU, Hao GUO. Recent Progress in Simplified Coherent Technology[J]. Study On Optical Communications, 2025, 51(1): 230165-01 Copy Citation Text show less
Typical structure of analog coherent receiver
Fig. 1. Typical structure of analog coherent receiver
Costas loop
Fig. 2. Costas loop
Structure of OPLL
Fig. 3. Structure of OPLL
Structure of EPLL
Fig. 4. Structure of EPLL
Structure of polarization controller
Fig. 5. Structure of polarization controller
Analog equalizer using CMA
Fig. 6. Analog equalizer using CMA
Structure of quasi-coherent receiver
Fig. 7. Structure of quasi-coherent receiver
文献载波频率/GHz比特率/Gbit/s比特率与载波频率比值(%)技术类型
[25]44.0100.0Schottky diode
[26]72.535.7Schottky diode
[27]62.541.7GaAs PHEMT
[28]10126.025.7InGaAs mHEMT
[29]10824.022.2InGaAs mHEMT
[30]30024.08.0InP HBT
Table 1. Research status of envelope detectors
文献比特率/Gbit/s传输距离/km调制格式偏振个数
[32]40016016-QAM2
[33]279100DMT1
[34]26730016-QAM1
[35]2208016-QAM1
[36]1688064-QAM1
[37]112804-PAM1
Table 2. Research status of KK receiver
Shan HU, Wei LI, Yingmei PAN, Tao ZENG, Ming LUO, Huang YU, Hao GUO. Recent Progress in Simplified Coherent Technology[J]. Study On Optical Communications, 2025, 51(1): 230165-01
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