Title :
60-GHz bidirectional radio-on-fiber links based on InP-InGaAs HPT optoelectronic mixers
Author :
Choi, Chang-Soon ; Seo, Jun-Hyuk ; Choi, Woo-Young ; Kamitsuna, Hideki ; Ida, Minoru ; Kurishima, Kenji
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
We demonstrate 60-GHz band bidirectional radio-on-fiber (RoF) links based on InP-InGaAs heterojunction phototransistor (HPT) optoelectronic mixers. They employ remote up/down conversion scheme with optical local oscillator signals distributed from the central office and intermediate frequency (IF) fiber transmission for both up- and down-links. Since frequency up/down conversions and photodetection are carried out by a single HPT optoelectronic mixer, base station architecture is greatly simplified. In order to validate its feasibility, both up- and down-link RoF transmissions of 16 quadrature amplitude modulator data are successfully demonstrated at 60-GHz band using 1.25-GHz IF for down-link and 2.0-GHz IF for up-link.
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; microwave mixers; optical communication equipment; optical frequency conversion; optical modulation; photodetectors; phototransistors; quadrature amplitude modulation; radio-over-fibre; 1.25 GHz; 2.0 GHz; 60 GHz; InP-InGaAs; InP-InGaAs HPT optoelectronic mixers; bidirectional radio-on-fiber links; frequency down conversion; frequency up conversion; heterojunction phototransistor; intermediate frequency fiber transmission; optical local oscillator; photodetection; quadrature amplitude modulator; Amplitude modulation; Base stations; Central office; Frequency conversion; Heterojunctions; Local oscillators; Mixers; Optical frequency conversion; Phototransistors; Quadrature amplitude modulation; 60-GHz band; bidirectional links; heterojunction phototransistor (HPT); millimeter-wave; optoelectronic mixer; photodetector; radio-on-fiber (RoF) system;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.859529
