Broadband frequency swept millimeter-wave source based on cascaded temporal optical pulse shaping

Ahmad, Eamonn J and Wang, Chao and Stiens, Johan (2015) Broadband frequency swept millimeter-wave source based on cascaded temporal optical pulse shaping. In: Microwave Photonics (MWP), 2015 International Topical Meeting on, 26-29 Oct 2015, Paphos. (doi:https://doi.org/10.1109/MWP.2015.7356713) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1109/MWP.2015.7356713

Abstract

A new approach to generate high-quality broadband frequency swept millimeter-wave (mm-wave) waveforms based on photonics-assisted frequency up conversion of a low-frequency chirped drive signal has been proposed. This is made possible by using an unbalanced temporal pulse shaping system involving two cascaded Mach-Zehnder modulators both biased at the minimum transmission points. The proposed approach is verified by simulations. A frequency swept mm-wave pulse with its instantaneous frequency spanning from 40 to 100 GHz and a chirp rate of 66.7 GHz/ns is generated thanks to 40 times frequency up conversion. Two-fold improvement on the time-bandwidth product of the generated waveform is also achieved thanks to the cascaded modulation scheme.

Item Type: Conference or workshop item (Speech)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunications > TK5103.59 Optical communications, Fibre-optics
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK8300 Optoelectronic devices
Divisions: Faculties > Sciences > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Chao Wang
Date Deposited: 28 Apr 2016 21:29 UTC
Last Modified: 29 Apr 2016 09:45 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/55187 (The current URI for this page, for reference purposes)
Wang, Chao: https://orcid.org/0000-0002-0454-8079
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