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)

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- Chinese Optics Letters
- Vol. 21, Issue 2, 023901 (2023)

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.
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Table 1. Development Progress on Photonic THz Communication
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Table 2. Link Parameters of Our Communication System

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