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arXiv · 1606.05234

High-power ultrafast Yb:fiber laser frequency combs using commercially available components and basic fiber tools

X. L. Li·M. A. R. Reber·C. Corder·Y. Chen·P. Zhao·T. K. Allison
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Abstract

We present a detailed description of the design, construction, and performance of high-power ultrafast Yb:fiber laser frequency combs in operation in our laboratory. We discuss two such laser systems: an 87 MHz, 9 W, 85 fs laser operating at 1060 nm and an 87 MHz, 80 W, 155 fs laser operating at 1035 nm. Both are constructed using low-cost, commercially available components, and can be assembled using only basic tools for cleaving and splicing single-mode fibers. We describe practical methods for achieving and characterizing low-noise single-pulse operation and long-term stability from Yb:fiber oscillators based on nonlinear polarization evolution. Stabilization of the combs using a variety of transducers, including a new method for tuning the carrier-envelope offset frequency, is discussed. High average power is achieved through chirped-pulse amplification in simple fiber amplifiers based on double-clad photonic crystal fibers. We describe the use of these combs in several applications, including ultrasensitive femtosecond time-resolved spectroscopy and cavity-enhanced high-order harmonic generation.

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X. L. Li, M. A. R. Reber, C. Corder, Y. Chen, P. Zhao, T. K. Allison. 2016-06-16. High-power ultrafast Yb:fiber laser frequency combs using commercially available components and basic fiber tools. https://doi.org/10.1063/1.4962867

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