Chinese Optics Letters, Volume. 21, Issue 2, 023901(2023)
Single-lane 200 Gbit/s photonic wireless transmission of multicarrier 64-QAM signals at 300 GHz over 30 m
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Fig. 1. Experimental configuration of the multicarrier photonics wireless transmission link. PC, polarization controller; IQ-MOD, in-phase and quadrature modulator; UTC-PD, unitraveling carrier photodiode; AWG, arbitrary waveform generator; LNA, low-noise amplifier; EDFA, erbium-doped fiber amplifier; VOA, variable optical attenuator; Pol., polarizer; DSO, digital storage oscilloscope; LO, local oscillator; inset (a), optical spectrum after the 50:50 optical coupler.
Fig. 2. (a) Electrical spectrum of 64-QAM signals before downconversion; (b) picture of experimental setup.
Fig. 3. Measured BER performance of three subcarriers after 30 m wireless transmission.
Fig. 4. (a) Measured BER performance with increasing baud rate of three subcarriers; (b)–(d) constellation of SC_1, SC_2, and SC_3 at 12 Gbaud.
Table 1. Development Progress on Photonic THz Communication
View tableView in ArticleTable 1. Development Progress on Photonic THz Communication
Carrier (GHz) Data Rate per Lane (Gbit/s) Modulation Format Transmission Distance (m) Ref. 300 50 OOK 100 [ 8 ]300 100 QPSK 0.1 [ 9 ]350 100 16-QAM 2 [ 10 ]300 128 0.5 [ 11 ]450 132 PS-64-QAM 1.8 [ 12 ]350 100.8 16-QAM-OFDM 26.8 [ 13 ]408 131 10.7 [ 14 ]300–500 80 16-QAM 0.5 [ 15 ]320–380 155 PS-64-QAM-OFDM 2.8 [ 16 ]300 202.5 64-QAM 30 This work
Table 2. Link Parameters of Our Communication System
View tableView in ArticleTable 2. Link Parameters of Our Communication System
Link Parameters Value Operating frequency 300 GHz Radiation THz power Tx antenna directional gain 25 dBi Tx antenna convergence gain 20 dBi Free-space path loss 111.5 dB Rx antenna convergence gain 20 dBi Rx antenna directional gain 25 dBi LNA gain 25 dB Conversion loss 12 dB Baseband amplified gain 12 dB
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Hongqi Zhang, Lu Zhang, Zuomin Yang, Hang Yang, Zhidong Lü, Xiaodan Pang, Oskars Ozolins, Xianbin Yu, "Single-lane 200 Gbit/s photonic wireless transmission of multicarrier 64-QAM signals at 300 GHz over 30 m," Chin. Opt. Lett. 21, 023901 (2023)
Paper Information
Category: Microwave Photonics
Received: Jul. 27, 2022
Accepted: Sep. 8, 2022
Published Online: Nov. 14, 2022
The Author Email: Xianbin Yu (xyu@zju.edu.cn)
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