Optimization of a supercontinuum source based on tapered ordinary fibers

Černe, Luka (author), Novak, Jure (author), Agrež, Vid (author), Petkovšek, Rok (author)

In this paper the generation of visible spectrum via optimized supercontinuum generation (SCG) in tapered ordinary fibers by ultrashort laser pulses is presented. The tunability of the visible part of the spectra is achieved by changing the pump pulse duration during operation. The optimization of the SCG is carried out by the investigation of the taper geometry with the emphasis on the downtapering section length. Its increase is found to be correlated to higher intensity in the visible part of the spectra. This is further supported by the results on spectra evolution before it enters the taper waist where an important transfer of the pump power to the shorter wavelengths is found.

• Language: English
• Keywords: fiber lasers, supercontinuum generation, ytterbium-doped fiber amplifiers
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Year: 2019
• Number of pages: Str. 1-6
• Numbering: Vol. 29, nr. 2
• PID: 20.500.12556/RUL-106041
• UDC: 535:621.375.826(045)
• ISSN on article: 1054-660X
• DOI: 10.1088/1555-6611/aaf640
• COBISS.SI-ID: 16453659
• Publication date in RUL: 18.01.2019

Secondary language

• Language: Slovenian
• Keywords: vlakenski laserji, Iterbijeva vlakna, tvorba supercontinuuma

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: L2-8183, L2-9240, P2-0392, P2-0270
• Name: Visoko prilagodljivi vlakenski laserji velikih moči za uporabo v industriji, Ultrakratki laserski pulzi na zahtevo, Optodinamika, Proizvodni sistemi, laserske tehnologije in spajanje materialov