Watt-level green random laser at 532  nm by SHG of Yb-doped fiber laser

Date

2018

Authors

Gouhier, B.
Dixneuf, C.
Antoni Micollier, L.
Guiraud, G.
Traynor, N.
Santarelli, Giorgio

Director

Publisher

Optical Society of America
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión aceptada / Onetsi den bertsioa

Project identifier

  • ES/1PE/TEC2016-76021/
  • European Commission/Horizon 2020 Framework Programme/748839/ openaire
Impacto
No disponible en Scopus

Abstract

We have developed a Watt-level random laser at 532 nm. The laser is based on a 1064 nm random distributed ytterbium-gain assisted fiber laser seed with a 0.35 nm line-width and 900 mW polarized output power. A study for the optimal length of the random distributed mirror was carried out. An ytterbium-doped fiber master oscillator power amplifier architecture is used to amplify the random seeder laser without additional spectral broadening up to 20 W. By using a periodically poled lithium niobate(PPLN) crystal in a single pass configuration we generate in excess of 1 W random laser at 532 nm by second harmonic generation with an efficiency of 9%. The green random laser exhibits an instability <1%, optical signal to noise ratio >70 dB, 0.1 nm linewidth and excellent beam quality.

Description

Keywords

Fiber laser, Distributed feedback lasers, Frequency doubled lasers, Ytterbium lasers, Laser amplifiers, Visible lasers

Department

Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren / Institute of Smart Cities - ISC / Ingeniería Eléctrica, Electrónica y de Comunicación

Faculty/School

Degree

Doctorate program

item.page.cita

item.page.rights

© 2018 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.

Los documentos de Academica-e están protegidos por derechos de autor con todos los derechos reservados, a no ser que se indique lo contrario.