TY - JOUR
KW - Atomic and Molecular Physics, and Optics
AU - W. Hettel
AU - G. Golba
AU - D. Morrill
AU - D. Carlson
AU - P. Chang
AU - T.-H. Wu
AU - S. Diddams
AU - Henry Kapteyn
AU - Margaret Murnane
AU - M. Hemmer
AB - <jats:p>We report a compact and reliable ultrafast fiber laser system optimized for seeding a high energy, 2 <jats:italic>μ</jats:italic>m pumped, 3 <jats:italic>μ</jats:italic>m wavelength optical parametric chirped pulse amplification to drive soft X-ray high harmonics. The system delivers 100 MHz narrowband 2 <jats:italic>μ</jats:italic>m pulses with &gt;1 nJ energy, synchronized with ultra-broadband optical pulses with a ∼1 <jats:italic>μ</jats:italic>m FWHM spectrum centered at 3 <jats:italic>μ</jats:italic>m with 39 pJ pulse energy. The 2 <jats:italic>μ</jats:italic>m and 3 <jats:italic>μ</jats:italic>m pulses are derived from a single 1.5 <jats:italic>μ</jats:italic>m fiber oscillator, fully fiber integrated with free-space downconversion for the 3 <jats:italic>μ</jats:italic>m. The system operates hands-off with power instabilities &lt;0.2% over extended periods of time.</jats:p>
BT - Optics Express
DA - 2024-01
DO - 10.1364/oe.508127
IS - 3
N2 - <jats:p>We report a compact and reliable ultrafast fiber laser system optimized for seeding a high energy, 2 <jats:italic>μ</jats:italic>m pumped, 3 <jats:italic>μ</jats:italic>m wavelength optical parametric chirped pulse amplification to drive soft X-ray high harmonics. The system delivers 100 MHz narrowband 2 <jats:italic>μ</jats:italic>m pulses with &gt;1 nJ energy, synchronized with ultra-broadband optical pulses with a ∼1 <jats:italic>μ</jats:italic>m FWHM spectrum centered at 3 <jats:italic>μ</jats:italic>m with 39 pJ pulse energy. The 2 <jats:italic>μ</jats:italic>m and 3 <jats:italic>μ</jats:italic>m pulses are derived from a single 1.5 <jats:italic>μ</jats:italic>m fiber oscillator, fully fiber integrated with free-space downconversion for the 3 <jats:italic>μ</jats:italic>m. The system operates hands-off with power instabilities &lt;0.2% over extended periods of time.</jats:p>
PB - Optica Publishing Group
PY - 2024
EP - 4072
T2 - Optics Express
TI - Compact, ultrastable, high repetition-rate 2 μm and 3 μm fiber laser for seeding mid-IR OPCPA
VL - 32
SN - 1094-4087
ER -