Title :
Phase Noise Investigation of Multicarrier Sub-THz Wireless Transmission System Based on an Injection-Locked Gain-Switched Laser
Author :
Tong Shao ; Shams, Haymen ; Anandarajah, Prince M. ; Fice, Martyn J. ; Renaud, Cyril C. ; van Dijk, Frederic ; Seeds, Alwyn J. ; Barry, Liam P.
Author_Institution :
Radio & Opt. Commun. Lab., Dublin City Univ., Dublin, Ireland
Abstract :
In this paper, we propose a multi-carrier THz wireless communication system using an injection-locked gain-switched laser as an optical comb source. The phase noise of the 192 GHz signal resulting from the beating of two optical comb lines is theoretically analyzed and experimentally examined. Moreover, a three channel, 10 Gbaud QPSK THz signal is generated, and transmission over 40 km standard single mode fiber (SSMF) is experimentally demonstrated.
Keywords :
high-speed optical techniques; phase noise; quadrature phase shift keying; semiconductor lasers; terahertz wave generation; QPSK; frequency 192 GHz; injection-locked gain-switched laser; multicarrier subterahertz wireless transmission system; optical comb source; phase noise investigation; standard single mode fiber; Delays; Laser noise; Optical attenuators; Optical modulation; Optical noise; Phase noise; Semiconductor lasers; Phase noise; frequency multiplication; gain-switched laser; optical comb;
Journal_Title :
Terahertz Science and Technology, IEEE Transactions on
DOI :
10.1109/TTHZ.2015.2418996
