Table 1 Literature overview of the state-of-the-art integrated optical coherent receivers
From: A 3.584 Tbps coherent receiver chip on InP-LiNbO3 wafer-level integration platform
Year/Ref | 202044 | 202045 | 202146 | 202247 | 202348 | 202449 | This work | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Material | InP | SiGe | Graphene/SOI | SiGe | SiGe | InP | InP/thin-film LiNbO3 | ||||||
Integration Method | Monolithic | Monolithic | Heterogeneous | Monolithic | Monolithic | Monolithic | Heterogeneous | ||||||
Optical Band | C-band | C-band | C-band | C-band O-band | O-band | C-band | C-band | ||||||
Polarization No. | 2 | 2 | 1 | 1 | 2 | 1 | 1 | ||||||
Channel No. | 2 | 1 | 1 | 1 | 1 | 1 | 1 | ||||||
3-dB BW (GHz) | 50 (Single PD) | 52 (Single PD) | > 67 (Single PD) | 33 (Single PD) | 42 (Single PD) | 80 (Single PD) | 140 (Single PD) 60 (Balanced PD) | ||||||
Symbol Rate (GBaud) | 90 | 96 | 80 | 100 | 60 | 64 | 66 | 128 | 128 | 100 | 100 | 100 | 100 |
Modulation Format | 64 QAM | 16 QAM | 16 QAM | QP SK | 16 QAM | QPSK | 16 QAM | 16 QAM | 16 QAM | 32 QAM | 64 QAM | QP SK | 16 QAM |
Bit Rate (Gbit s-1λ-1Pol-1) | 400 | 384 | 320 | 200 | 240 | 128 | 264 | 512 | 512 | 500 | 600 | 200 | 400 |
Distance (km) | B2B | B2B | B2B | B2B | B2B | B2B | B2B | B2B | B2B | B2B | B2B | 1040 | 25 |
