Title :
Proposal of simple Photonic Frequency up-conversion in direct modulation radio over fiber link utilizing nonlinear photodetection scheme
Author :
Yiying Gu ; Dandan Sun ; Xiuyou Han ; Jingjing Hu ; Shu Hu ; Nuannuan Shi ; Mingshan Zhao
Author_Institution :
Sch. of Phys. & Optoelectron. Eng., Dalian Univ. of Technol., Dalian, China
Abstract :
This paper presents a simple photonic frequency up-conversion system based on direct modulation radio over fiber (RoF) link which employs optical-microwave double-mixing scheme with a high-speed photodetector (PD). With this up-conversion technique, an intermediate frequency(IF) signal of 500MHz carrying 20Mbps quadrature phase shift keying (QPSK) vector signal is up-converted to 16GHz in the base station via standard single-mode fiber (SMF) transmission. The received 16GHz radio frequency (RF) signal is demodulated successfully with the error vector magnitude (EVM) of 8.34% rms. The proposed architecture is with the advantages of cost-efficiency, system operation efficiency and reliability.
Keywords :
microwave photonics; optical modulation; quadrature phase shift keying; radio links; radio-over-fibre; vectors; EVM; IF signal; QPSK vector signal; RF signal; RoF link; SMF transmission; base station; direct modulation radio over fiber link; error vector magnitude; high-speed photodetector; intermediate frequency signal; nonlinear photodetection scheme; optical-microwave double-mixing scheme; photonic frequency up-conversion system; quadrature phase shift keying vector signal; radio frequency signal; standard single-mode fiber transmission; system operation efficiency; system operation reliability; Frequency modulation; Optical amplifiers; Optical fibers; Optical mixing; Optical modulation; direct modulation; optical-microwave double-mixing; photonic up-conversion; radio over fiber;
Conference_Titel :
Microwave Photonics (MWP), 2012 International Topical Meeting on
Conference_Location :
Noordwijk
Print_ISBN :
978-1-4673-2863-0
DOI :
10.1109/MWP.2012.6474095
