Journal
OPTICS EXPRESS
Volume 27, Issue 24, Pages 35041-35051Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.27.035041
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Funding
- Fundacja na rzecz Nauki Polskiej (FNP) [First TEAM/2016-1/1 - POIR.04.04.00-00-1D64/16-00]
- Schweizerischer Nationalfonds zur Forderung der Wissenschaftlichen Forschung (SNSF) [PCEFP2_181222]
- Narodowe Centrum Nauki OPUS [2017/25/B/ST7/01145]
- Schlumberger Foundation Faculty for the Future program
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We report an ultra-low noise, polarization-maintaining, ultrafast Thulium-doped allfiber chirped pulse amplifier, seeded by a polarized all-normal dispersion (ANDi) supercontinuum (SC) driven by an ultrafast Erbium-fiber laser. The system comprises only polarization-maintaining fibers and delivers 96 fs pulses with 350mWoutput power at 100 MHz, centered at 1900 nm. The integrated relative intensity noise (RIN) in the range of 10 Hz - 10 MHz is only 0.047% at the amplifier output, which is virtually identical to the RIN of the Erbium-fiber laser driving the SC. Therefore, neither the SC generation nor the amplification process introduce significant excess noise. The RIN of our system is an order of magnitude lower than similar systems previously seeded with Raman solitons. This highlights the superior noise properties of ANDi SC and their potential as ultra-low noise seed sources for broadband, high power ultrafast fiber amplifiers and frequency combs. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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