Femtosecond laser plane-by-plane Bragg gratings for monolithic Thulium-doped fibre laser operating at 1970 nm

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F19%3A00518806" target="_blank" >RIV/67985882:_____/19:00518806 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/12.2524911" target="_blank" >http://dx.doi.org/10.1117/12.2524911</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2524911" target="_blank" >10.1117/12.2524911</a>

Result language

angličtina

Original language name

Femtosecond laser plane-by-plane Bragg gratings for monolithic Thulium-doped fibre laser operating at 1970 nm

Original language description

The inscription of fibre Bragg gratings directly into active fibres has great potential compared with typical, non-monolithic fibre laser configurations, offering more compact and robust lasers since the 'weak' sections of the laser, such as the free space components and splice joints, which are usually the main reasons for failures, are removed from the optical cavity. The last few years thulium doped fibres have attracted great interest for fibre laser applications, due to their performance and emission wavelength range, which is in the range of 1.9 to 2.1 mu m. Here the laser operates in the 'eye-safe' region and offers advantages over the 1 mu m lasers both for industrial and military applications. In this paper, we report on the inscription of a high reflectivity fibre Bragg gratings directly into different Thulium-doped silica fibres using the plane-by-plane femtosecond laser inscription method and their demonstration as monolithic fibre lasers. Fibre Bragg gratings were inscribed and characterised as fibre lasers using three fibres with different concentration of thulium ions, which influence the fluorescence properties. The monolithic structures were designed for continuous wave operation in the 1970 nm 'eye-safe' region and characterised in fibre laser configurations regarding the power output slope efficiency, stability and effective resonator length

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proc. of SPIE, Micro-structured and Specialty Optical Fibres VI

ISBN

978-1-5106-2725-3

ISSN

0277-786X

e-ISSN

1996-756X

Number of pages

7

Pages from-to

UNSP 110290F

Publisher name

SPIE

Place of publication

Bellingham

Event location

Praha

Event date

Apr 3, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000502109500006