Development of a High-Power Radially Polarized Laser
Lead Research Organisation:
University of Southampton
Department Name: Optoelectronics Research Ctr (closed)
Abstract
This project aims to develop and trial a radially polarized laser for processing of materials. Methods of generating high-purity radially polarized laser modes are explored to provide seed sources for later investigation of novel amplification methods. A thermally guiding fibre-rod amplifier has been developed which is currently under trial in the amplification of radially polarized modes. The project ultimately aims to scale power levels to a level where the potential for laser processing using radially polarized modes may be explored.
Organisations
People |
ORCID iD |
| W Clarkson (Primary Supervisor) | |
| Thomas Jefferson-Brain (Student) |
Publications
Burns MD
(2019)
47 W continuous-wave 1726 nm thulium fiber laser core-pumped by an erbium fiber laser.
in Optics letters
Jefferson-Brain T
(2022)
Stabilisation of transverse mode purity in a radially polarised Ho:YAG laser using machine learning
in Applied Physics B
Jefferson-Brain T
(2019)
Amplification of a radially polarized beam in a thermally guiding ytterbium-doped fiber rod
in Applied Physics B
Jefferson-Brain TL
(2019)
Generation and amplification of a LG01 laser with a thermally guiding fiber-rod
Jefferson-Brain TL
(2019)
Amplification of a radially polarized beam in a thermally-guiding fiber-rod amplifier
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/N509747/1 | 30/09/2016 | 29/09/2021 | |||
| 1921150 | Studentship | EP/N509747/1 | 04/09/2016 | 29/02/2020 | Thomas Jefferson-Brain |
| Description | A new method for amplifying radially polarized laser beams using thermally guiding fibre amplifiers |
| Exploitation Route | Scaling the power of radially polarized laser modes much higher using the discovered amplifier geometry |
| Sectors | Manufacturing including Industrial Biotechology |
| Title | Alignment of higher-order mode solid-state laser systems with machine learning diagnostic assistance |
| Description | Use of machine learning to develop a laser mode recognition algorithm for aiding in alignment of higher-order mode lasers. |
| Type Of Material | Technology assay or reagent |
| Year Produced | 2019 |
| Provided To Others? | No |
| Impact | Increased speed of labwork and alignment |
| Description | The Light Express Roadshow |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Schools |
| Results and Impact | Over 15,000 people worked with over a number of years. An education travelling lecture with demonstrations and applications of laser physics. Inspired people to come to university to learn physics, measured increase in enthusiasm and knowledge for photonics. |
| Year(s) Of Engagement Activity | 2012,2013,2014,2015,2016,2017,2018,2019 |
| URL | http://www.lightexpress.soton.ac.uk/ |