González Guerrero, LuisShams, HaymenFatadin, IrshaadWu, John EdwardFice, Martin J.Naftaly, MiraSeeds, Alwyn J.Renaud, Cyril C.2022-02-282022-02-282021-05-01Gonzalez-Guerrero, L., Shams, H., Fatadin, I., Wu, J. E., Fice, M. J., Naftaly, M., Seeds, A. J., & Renaud, C. C. (2021). Pilot-Tone Assisted 16-QAM Photonic Wireless Bridge Operating At 250 GHz. Journal of Lightwave Technology, 39(9), 2725–2736.0733-8724https://hdl.handle.net/10016/34256(copyright) 1983-2012 IEEE.A photonic wireless bridge operating at a carrier frequency of 250 GHz is proposed and demonstrated. To mitigate the phase noise of the free-running lasers present in such a link, the tone-Assisted carrier recovery is used. Compared to the blind phase noise compensation (PNC) algorithm, this technique exhibited penalties of 0.15 and 0.46 dB when used with aggregated Lorentzian linewidths of 28 and 359 kHz, respectively, and 20 GBd 16-quadrature amplitude modulation (QAM) signals. The wireless bridge is also demonstrated in a wavelength division multiplexing (WDM) scenario, where five optical channels are generated and sent to the Tx remote antenna unit (RAU). In this configuration, the full band from 224 to 294 GHz is used. Finally, a 50 Gbit/s transmission is achieved with the proposed wireless bridge in single channel configuration. The wireless transmission distance is limited to 10 cm due to the low power emitted by the uni-Travelling carrier photodiode used in the experiments. However, link budget calculations based on state-of-The-Art THz technology show that distances >1000 m can be achieved with this approach.12engThis work is licensed under a Creative Commons Attribution 4.0 License.Atribución 3.0 EspañaBroadband communicationsDigital signal processingMicrowave photonicsMillimeter wave communicationsOptical mixingSub-thz communicationsWireless bridgeresearch articleElectrónicahttps://doi.org/10.1109/JLT.2021.3053616open access272592736JOURNAL OF LIGHTWAVE TECHNOLOGY39AR/0000028662