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High pulse energy fibre laser as an excitation source for photoacoustic tomography

Allen, TJ; Berendt, M; Lin, D; Alam, SU; Huynh, NT; Zhang, E; Richardson, DJ; (2020) High pulse energy fibre laser as an excitation source for photoacoustic tomography. Optics Express , 28 (23) p. 34255. 10.1364/oe.401708. Green open access

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Abstract

A custom fibre laser designed as an excitation source for biomedical photoacoustic tomography has been developed. It is based on a custom-drawn large core diameter fibre (200 µm) that enables high pulse energies (∼10 mJ) to be achieved. The system can provide variable pulse durations (10 - 500 ns) and pulse repetition frequencies (100 Hz - 1 kHz), as well as arbitrary pulse bursts according to specific user defined sequences. The system is also compact and does not require external water cooling. This, along with the flexibility in the temporal characteristics of its output that it offers, will aid the translation of photoacoustic imaging to practical application in medicine and biology.

Type: Article
Title: High pulse energy fibre laser as an excitation source for photoacoustic tomography
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/oe.401708
Publisher version: https://doi.org/10.1364/OE.401708
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10114331
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