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Authors: Z. Tang, J. Zhang, S. Pan, G. Roelkens, D. Van Thourhout
Title: RoF System based on a III-V-on-Silicon Transceiver with a Transfer-Printed PD
Format: International Journal
Publication date: 7/2019
Journal/Conference/Book: IEEE Photonics Technology Letters
Editor/Publisher: IEEE Photonics Society, 
Volume(Issue): 31(13) p.1045 - 1048
DOI: 10.1109/LPT.2019.2917269
Citations: 1 (Dimensions.ai - last update: 26/10/2020)
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Abstract

A full-duplex analog radio-over-fiber (RoF) system using an ultra-compact integrated III-V-on-silicon transceiver is proposed. The downstream link transmitter is realized by a 15-GHz C-band silicon ring modulator, and the upstream link receiver is constructed based on transfer printing an 11.5-GHz O-band III-V PD with a responsivity of ~0.5 A/W. Since the transfer-printed III-V PD is ‘transparent’ to the C-band downstream signal, the III-V PD is directly placed on top of the grating coupler without affecting the downstream signal, which reduces the footprint of the transceiver and also enables bidirectional transmission of the C-band and O-band signals in the same optical fiber. With the integrated transceiver, an error vector magnitude (EVM) of less than 6% is achieved for the transmission of X-band 16-QAM downstream and upstream signals with 1-Gbps data rate through a 5-km RoF link.

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