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

Volume

5

Issue

4

fYear

2015

fDate

Jul-15

Firstpage

590

Lastpage

597

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;

fLanguage

English

Journal_Title

Terahertz Science and Technology, IEEE Transactions on

Publisher

ieee

ISSN

2156-342X

Type

jour

DOI

10.1109/TTHZ.2015.2418996

Filename

7101306