Quasi-CW Pumping of a Single-Frequency Fiber Amplifier for Efficient SHG in PPLN Crystals with Reduced Thermal Load
Source abstract
Abstract
Single-frequency lasers are essential for high-resolution spectroscopy and sensing applications as they combine high-frequency stability with low noise and high output power stability. For many of these applications, there is increasing interest in power-scaling single-frequency sources, both in the near-infrared and visible spectral range. We report the second-harmonic generation of 670 µJ at 532 nm of a single-frequency fiber amplifier signal operating in the quasi-continuous-wave mode in a 10-mm periodically poled Mg-doped lithium niobate (MgO:PPLN) crystal, while increasing compactness. To the best of our knowledge, this is the highest pulse energy generated in this crystal, which may find applications in the visible and UV such as remote Raman spectroscopy.
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Research context
OpenAlex topics: Advanced Fiber Laser Technologies · Photorefractive and Nonlinear Optics · Solid State Laser Technologies
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Affiliations
Department of Electronics, Mid Sweden University, 851 70 Sundsvall, Sweden
Applied Physics Department, Stanford University, Stanford, CA 94305, USA
Faculty of Science, Mid Sweden University, 851 70 Sundsvall, Sweden
Funding
Knowledge Foundation (KKS) · EU regional funds
References (30)
Show source-provided references
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