Title :
Radio-over-fiber systems for WLAN based on CMOS-compatible Si-avalanche photodetectors
Author :
Kang, Hyo-Soon ; Lee, Myung-Jae ; Choi, Woo-Young
Author_Institution :
Department of Electrical and Electronic Engineering, Yonsei University, 134 Shinchon-dong, Seodaemoon-gu, Seoul 120-749, Korea
Abstract :
We demonstrate radio-over-fiber (RoF) systems for IEEE 802.11a wireless local area network (WLAN) using Si avalanche photodetectors (APDs) fabricated in 0.18 mum standard complementary metal-oxide-semiconductor (CMOS) process. In order to achieve high optic-to-electric conversion efficiency and low-noise characteristics, the APD bias voltage is optimized with the evaluation of error vector magnitude (EVM). Downlink data transmission of 20 Mb/s, 16 quadrature amplitude modulation data at 5.805 GHz with a wireless link is successfully performed.
Keywords :
avalanche photodiodes; integrated optoelectronics; photodetectors; radio access networks; radio links; radio-over-fibre; silicon; wireless LAN; CMOS-compatible Si-avalanche photodetectors; IEEE 802.11a wireless local area network; Si; WLAN; amplitude modulation data; downlink data transmission; error vector magnitude; frequency 5.805 GHz; low-noise characteristics; optic-to-electric conversion efficiency; radio-over-fiber systems; size 0.18 mum; standard complementary metal-oxide-semiconductor process; wireless link; Costs; Optical feedback; Optical modulation; Optical receivers; Optical transmitters; Photodetectors; Stimulated emission; Vertical cavity surface emitting lasers; Voltage; Wireless LAN; Avalanche photodetectors; CMOS-compatible photodetectors; error vector magnitude (EVM); radio-over-fiber (RoF) system; wireless local area networks (WLANs);
Conference_Titel :
Microwave Symposium Digest, 2008 IEEE MTT-S International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1780-3
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2008.4633213
