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An 8Gbps Adaptive Receiver for RF over FSO in 28nm CMOS

Aghlmand, Fatemeh and Sharma, Saransh and Emami, Azita (2021) An 8Gbps Adaptive Receiver for RF over FSO in 28nm CMOS. In: Proceedings of the 15th European Microwave Integrated Circuits Conference. IEEE , Piscataway, NJ, pp. 49-52. ISBN 978-1-7281-7040-4.

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This paper presents a fully integrated high-bandwidth receiver for RF-over-free-space optics (RoFSO). Using subcarrier intensity modulation (SIM) and direct detection scheme, high data rate optical communication is supported in a high-loss atmospheric channel. For proof-of-concept demonstration, an 8Gbps input data via differential phase shift keying (DPSK) modulation and with 10GHz of RF bandwidth is employed. The link performance is assessed by exposing the system to more than 26dB of optical loss equivalent to 3.5km of free space distance under moderate visibility conditions. The receiver chip uses adaptive control loops to compensate for the atmospheric effects and extends the dynamic range. It has been designed and implemented in 28nm CMOS process and achieves 58dB of gain and 18GHz of bandwidth.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Sharma, Saransh0000-0002-5052-4932
Emami, Azita0000-0003-2608-9691
Additional Information:© 2020 EuMA. The authors would like to acknowledge Boeing for funding. We thank A.H. Talkhooncheh, K.-C. Chen (MICS lab) and M. Wright, S. Piazzolla (JPL) for helpful discussions.
Funding AgencyGrant Number
Boeing CorporationUNSPECIFIED
Subject Keywords:RF-over-free-space, subcarrier intensity modulation, differential phase shift keying
Record Number:CaltechAUTHORS:20210209-153207262
Persistent URL:
Official Citation:F. Aghlmand, S. Sharma and A. Emami, "An 8Gbps Adaptive Receiver for RF over FSO in 28nm CMOS," 2020 15th European Microwave Integrated Circuits Conference (EuMIC), Utrecht, Netherlands, 2021, pp. 49-52, doi: 10.1109/EuMIC48047.2021.00024
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107973
Deposited By: Tony Diaz
Deposited On:09 Feb 2021 23:39
Last Modified:16 Nov 2021 19:07

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