High power narrow-band fiber-based ASE source.
Opt Express
; 19(5): 4421-7, 2011 Feb 28.
Article
en En
| MEDLINE
| ID: mdl-21369273
ABSTRACT
In this paper we describe a high power narrow-band amplified spontaneous emission (ASE) light source at 1030 nm center wavelength generated in an Yb-doped fiber-based experimental setup. By cutting a small region out of a broadband ASE spectrum using two fiber Bragg gratings a strongly constrained bandwidth of 12±2 pm (3.5±0.6 GHz) is formed. A two-stage high power fiber amplifier system is used to boost the output power up to 697 W with a measured beam quality of M2≤1.34. In an additional experiment we demonstrate a stimulated Brillouin scattering (SBS) suppression of at least 17 dB (theoretically predicted ~20 dB), which is only limited by the dynamic range of the measurement and not by the onset of SBS when using the described light source. The presented narrow-band ASE source could be of great interest for brightness scaling applications by beam combination, where SBS is known as a limiting factor.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Refractometría
/
Tecnología de Fibra Óptica
/
Amplificadores Electrónicos
/
Rayos Láser
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Alemania