The University of Southampton
University of Southampton Institutional Repository

Wavelength-tunable Hermite–Gaussian modes and an orbital-angular-momentum-tunable vortex beam in a dual-off-axis pumped Yb:CALGO laser

Wavelength-tunable Hermite–Gaussian modes and an orbital-angular-momentum-tunable vortex beam in a dual-off-axis pumped Yb:CALGO laser
Wavelength-tunable Hermite–Gaussian modes and an orbital-angular-momentum-tunable vortex beam in a dual-off-axis pumped Yb:CALGO laser
A dual-off-axis pumping scheme is presented to generate wavelength-tunable high-order Hermite–Gaussian (HG) modes in Yb:CaGdAlO4 lasers. The mode and wavelength can be actively controlled by the off-axis displacements and pump power. The purities of the output HG modes are quantified by intensity distributions and the measured M2 values. The highest order reaches m = 15 for stable HGm,0 mode, and wavelength-tunable width is about 10 nm. Moreover, through externally converting the HGm,0 modes, the vortex beams carrying orbital angular momentum (OAM) with a large OAM-tunable range from ±1ℏ to ±15ℏ are produced. This work is effective for largely scaling the spectral and OAM tunable ranges of optical vortex beams.
0146-9592
291-294
Shen, Yijie
42410cf7-8adb-4de6-9175-a1332245c368
Meng, Yuan
8690642a-48a9-4b47-b0ac-dd1aea60f3b0
Fu, Xing
21bd4974-1d1f-4a6a-84e2-c805ef547450
Gong, Mali
cbf30aad-44d3-49d7-967a-1716d7e80668
Shen, Yijie
42410cf7-8adb-4de6-9175-a1332245c368
Meng, Yuan
8690642a-48a9-4b47-b0ac-dd1aea60f3b0
Fu, Xing
21bd4974-1d1f-4a6a-84e2-c805ef547450
Gong, Mali
cbf30aad-44d3-49d7-967a-1716d7e80668

Shen, Yijie, Meng, Yuan, Fu, Xing and Gong, Mali (2018) Wavelength-tunable Hermite–Gaussian modes and an orbital-angular-momentum-tunable vortex beam in a dual-off-axis pumped Yb:CALGO laser. Optics Letters, 43 (2), 291-294. (doi:10.1364/OL.43.000291).

Record type: Article

Abstract

A dual-off-axis pumping scheme is presented to generate wavelength-tunable high-order Hermite–Gaussian (HG) modes in Yb:CaGdAlO4 lasers. The mode and wavelength can be actively controlled by the off-axis displacements and pump power. The purities of the output HG modes are quantified by intensity distributions and the measured M2 values. The highest order reaches m = 15 for stable HGm,0 mode, and wavelength-tunable width is about 10 nm. Moreover, through externally converting the HGm,0 modes, the vortex beams carrying orbital angular momentum (OAM) with a large OAM-tunable range from ±1ℏ to ±15ℏ are produced. This work is effective for largely scaling the spectral and OAM tunable ranges of optical vortex beams.

Full text not available from this repository.

More information

Accepted/In Press date: 7 December 2017
e-pub ahead of print date: 10 January 2018
Published date: 15 January 2018

Identifiers

Local EPrints ID: 442528
URI: http://eprints.soton.ac.uk/id/eprint/442528
ISSN: 0146-9592
PURE UUID: 355f8c2c-f9d1-4297-b2cf-c59d87bef1dc

Catalogue record

Date deposited: 17 Jul 2020 16:31
Last modified: 14 Sep 2021 18:46

Export record

Altmetrics

Contributors

Author: Yijie Shen
Author: Yuan Meng
Author: Xing Fu
Author: Mali Gong

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×