Power-scalable, polarization-stable, dual-colour DFB fibre laser system for CW terahertz imaging

Finn Eichhorn, Jens Engholm Pedersen, Peter Uhd Jepsen

Research output: Contribution to conferencePosterResearchpeer-review

Abstract

Imaging with electromagnetic radiation in the terahertz (THz) range has received a large amount of attention during recent years. THz imaging systems have diverse potential application areas such as security screening, medical diagnostics and non-destructive testing. We will discuss a power-scalable, dual-colour, polarization-maintaining distributed feedback (DFB) fibre laser system with an inherent narrow linewidth from the DFB fibre laser oscillators. The laser system can be used as source in CW THz systems employing photomixing (optical heterodyning) for generation and detection and is an alternative to pulsed THz systems using femtosecond lasers. The laser system generates output powers up to several hundred mW, has a 25 kHz linewidth and a polarization extinction ratio of better than 20 dB. Since the output power reaches the Watt-level, the laser system is a suitable candidate for future multi-channel THz imaging systems.
Original languageEnglish
Publication date2008
Publication statusPublished - 2008
EventJoint Meeting of the APS Ohio-Region Section, the AAPT Southern Ohio Section, and the ACS Dayton-Section - Dayton, Ohio, USA
Duration: 1 Jan 2008 → …

Conference

ConferenceJoint Meeting of the APS Ohio-Region Section, the AAPT Southern Ohio Section, and the ACS Dayton-Section
CityDayton, Ohio, USA
Period01/01/2008 → …

Cite this

Eichhorn, F., Pedersen, J. E., & Jepsen, P. U. (2008). Power-scalable, polarization-stable, dual-colour DFB fibre laser system for CW terahertz imaging. Poster session presented at Joint Meeting of the APS Ohio-Region Section, the AAPT Southern Ohio Section, and the ACS Dayton-Section, Dayton, Ohio, USA, .