The University of Southampton
University of Southampton Institutional Repository

Direct observation of Kramers-Kronig self-phasing in coherently combined fiber lasers

Direct observation of Kramers-Kronig self-phasing in coherently combined fiber lasers
Direct observation of Kramers-Kronig self-phasing in coherently combined fiber lasers
A highly stable coherent beam-combining system has been designed to measure self-phasing in fiber lasers due to nonlinear effects. Whereas self-phasing in previous coherent combination experiments has been principally attributed to wavelength shifting, these wavelength effects have been efficiently suppressed in our experiment by using a dual-core fiber with closely balanced optical path lengths. The self-phasing from nonlinear effects could then be measured independently and directly by common-path interferometry with a probe laser. The Kramers-Kronig effect in the fiber gain media was observed to induce a phase shift that effectively canceled the applied path length errors, resulting in efficient lasing under all phase conditions. This process was demonstrated to result in robust lasing over a large range of pump conditions.
0146-9592
4104-4107
Chiang, Hung-Sheng
27fef11c-4224-4973-9367-b64bf314b21c
Leger, James R.
7afbc5c6-2518-49bf-8b03-1a2456ebe2d8
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Chiang, Hung-Sheng
27fef11c-4224-4973-9367-b64bf314b21c
Leger, James R.
7afbc5c6-2518-49bf-8b03-1a2456ebe2d8
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2

Chiang, Hung-Sheng, Leger, James R., Nilsson, Johan and Sahu, Jayanta (2013) Direct observation of Kramers-Kronig self-phasing in coherently combined fiber lasers. Optics Letters, 38 (20), 4104-4107. (doi:10.1364/OL.38.004104).

Record type: Article

Abstract

A highly stable coherent beam-combining system has been designed to measure self-phasing in fiber lasers due to nonlinear effects. Whereas self-phasing in previous coherent combination experiments has been principally attributed to wavelength shifting, these wavelength effects have been efficiently suppressed in our experiment by using a dual-core fiber with closely balanced optical path lengths. The self-phasing from nonlinear effects could then be measured independently and directly by common-path interferometry with a probe laser. The Kramers-Kronig effect in the fiber gain media was observed to induce a phase shift that effectively canceled the applied path length errors, resulting in efficient lasing under all phase conditions. This process was demonstrated to result in robust lasing over a large range of pump conditions.

This record has no associated files available for download.

More information

Accepted/In Press date: 11 September 2013
e-pub ahead of print date: 9 October 2013
Published date: 15 October 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 378477
URI: http://eprints.soton.ac.uk/id/eprint/378477
ISSN: 0146-9592
PURE UUID: cf7570f3-b4d6-44ca-98de-35a5a1bea505
ORCID for Johan Nilsson: ORCID iD orcid.org/0000-0003-1691-7959
ORCID for Jayanta Sahu: ORCID iD orcid.org/0000-0003-3560-6152

Catalogue record

Date deposited: 29 Jun 2015 10:54
Last modified: 15 Mar 2024 03:09

Export record

Altmetrics

Contributors

Author: Hung-Sheng Chiang
Author: James R. Leger
Author: Johan Nilsson ORCID iD
Author: Jayanta Sahu ORCID iD

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.

×