Spectral-temporal composition matters when cascading supercontinua into the mid-infrared.
Opt Express
; 24(2): 749-58, 2016 Jan 25.
Article
en En
| MEDLINE
| ID: mdl-26832460
Supercontinuum generation in chalcogenide fibers is a promising technology for broadband spatially coherent sources in the mid-infrared, but it suffers from discouraging commercial prospects, mainly due to a lack of suitable pump lasers. Here, a promising approach is experimentally demonstrated using an amplified 1.55 µm diode laser to generate a pump continuum up to 4.4 µm in cascaded silica and fluoride fibers. We present experimental evidence and numerical simulations confirming that the spectral-temporal composition of the pump continuum is critical for continued broadening in a chalcogenide fiber. The fundamental physical question is concerned with the long-wavelength components of the pump spectrum, which may consist of either solitons or dispersive waves. In demonstrating this we present a commercially viable fiber-cascading configuration to generate a mid-infrared supercontinuum up to 7 µm in commercial chalcogenide fibers.
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01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2016
Tipo del documento:
Article
Pais de publicación:
Estados Unidos