DFB diode seeded low repetition rate fiber laser system operating in burst mode

Šajn, Marko (author), Petelin, Jaka (author), Agrež, Vid (author), Vidmar, Matjaž (author), Petkovšek, Rok (author)

A distributed feedback (DFB) diode, gain switched to produce pulses from 60 ps at high peak power of over 0.5 W, is used in burst mode to seed a fiber amplifier chain. High seed power, spectral filtering between amplifier stages and pulsed pumping are used to mitigate amplified spontaneous emission (ASE). The effect of pulse pumping synchronized with the seed on the ASE is explored for the power amplifier at low repetition. Different input and output energies at different burst repetition rates are examined and up to 85% reduction in ASE is achieved compared to continuous pumping. Finally, a numerical model is used to predict further reduction of ASE.

• Language: English
• Keywords: fiber lasers, laser amplifiers, ytterbium fibers
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Year: 2017
• Number of pages: Str. 99-103
• Numbering: Vol. 88
• PID: 20.500.12556/RUL-105560
• UDC: 535(045)
• ISSN on article: 0030-3992
• DOI: 10.1016/j.optlastec.2016.09.006
• COBISS.SI-ID: 14904091
• Publication date in RUL: 06.12.2018

Record is a part of a journal

• Title: Optics and laser technology
• Shortened title: Opt. laser technol.
• Publisher: Elsevier
• ISSN: 0030-3992
• COBISS.SI-ID: 26072576

Secondary language

• Language: Slovenian
• Keywords: vlakenski laserji, laserski ojačevalniki, iterbijeva vlakna

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0270, P2-0392, L2-6780
• Name: Proizvodni sistemi, laserske tehnologije in spajanje materialov, Optodinamika, Hibridni ps laser velikih moči