Photonic integrated circuits for terahertz source generation

Hou, L. , Tang, S., Hou, B. and Marsh, J. H. (2020) Photonic integrated circuits for terahertz source generation. IET Optoelectronics, 14(3), pp. 136-142. (doi: 10.1049/iet-opt.2019.0089)

209819.pdf - Accepted Version



The authors introduce four kinds of terahertz photonics components based on photonic integrated circuits (PICs). A PIC-based integrated optoelectronic synthesiser for THz communications is described, which can be tuned continuously over the range 0.254-2.723 THz using photomixing. A laterally-coupled dual-grating distributed feedback laser (DFB) diode integrated with an electroabsorption modulator is used to generate an 820 GHz beat signal. THz signal production is reported using a dual-wavelength DFB diode laser with a two-section phase-shifted sampled Bragg grating. Finally, a THz source at 640 GHz, based on a sampled grating distributed Bragg reflector semiconductor mode-locked laser diode, is reported offering superior reproducibility, controllability, and a wider operation range than other reported mode-locked THz laser diodes. Each of these sources is a monolithic construction emitting light at 1.5 μm. The light can be amplified in an erbium-doped fibre amplifier, delivered over silica optical fibre and used to generate THz radiation via a photodiode antenna or photoconductive antenna in a remote location.

Item Type:Articles
Additional Information:This work was supported in part by the U.K. Engineering and Physical Sciences Research Council under Grant EP/R042578/1 and by the National Science Foundation of China under grant no. 61320106013.
Glasgow Author(s) Enlighten ID:Hou, Bin and Marsh, Professor John and Tang, Song and Hou, Dr Lianping
Authors: Hou, L., Tang, S., Hou, B., and Marsh, J. H.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:IET Optoelectronics
Publisher:Institution of Engineering and Technology
Published Online:03 March 2020
Copyright Holders:Copyright © 2020 The Institution of Engineering and Technology
First Published:First published in IET Optoelectronics 14(3):136-142
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

University Staff: Request a correction | Enlighten Editors: Update this record

Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
302617Optically controlled THz phased array antennasJohn MarshEngineering and Physical Sciences Research Council (EPSRC)EP/R042578/1ENG - Electronics & Nanoscale Engineering