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September 28, 2025High Power Laser Science and EngineeringOpen Access

High-Power Near-Single-Mode Fiber Laser Based on the Low-NA Confined-Doped Fiber: Numerical Investigation and 6.74 kW Experimental Validation

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Authors

CYCheng YangShandong Agricultural UniversityHLHaobo LiNational University of Defense TechnologyPGPengcheng Geng

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Overview

Numerical investigation and experimental validation demonstrate a 6.74 kW fiber laser's capabilities, suggesting viability for high-power applications.

Key Points

  • The new fiber laser achieved an output power of 6.74 kW, showcasing its efficiency for high-power applications.
  • This research includes both numerical investigations and real-world experimental validation, highlighting the technology's effectiveness.
  • The fiber laser is based on low-NA confined-doped fiber, which contributes to its high-power and near-single-mode characteristics.
  • Work on this laser can lead to advancements in various applications, indicating promising future developments in the field.

Cite This Study

Yang et al. (2025) studied this question.

synapsesocial.com/papers/68d9052941e1c178a14f57achttps://doi.org/10.1017/hpl.2025.10070
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  1. 16.7 kW LD-Pumped Nearly-Single-Mode MOPA Fiber Laser Enabled by Low-NA Confined-Doped Fiber2025
  2. 2High-power high-repetition-rate nanosecond pulsed single frequency laser at 780 nm2026
  3. 3Achieving 8-kW Single-Mode Output in Low-NA Fibers via Bend-Optimized High-Loss TMI Suppression2026
  4. 4A 81 mJ 12 MW Nanosecond All-fiber-Based MOPA Laser Based on Pulse-Picking Amplification and Beam Homogenization2026
  5. 5Functional Yb-doped fiber with a bat-type refractive index distribution for beyond kilowatt all-fiber single-frequency laser amplification2025