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March 3, 2026Open Access

Ultrashort Pulses of 32 W and 207 fs at 1 MHz from a Compact All-Fiber Amplifier

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Authors

XSXin ShaoXMXianghao MengTJTianmeng Jiao

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Overview

Demonstrates high power and short pulses in an all-fiber laser system, suggesting industrial and scientific potential.

Key Points

  • This research aims to develop a high-power, compact all-fiber amplifier that produces femtosecond pulses.
  • Used a semiconductor saturable absorber mirror for mode-locking
  • Implemented temperature-controlled chirped fiber Bragg gratings for pulse stretching
  • Amplified light in a Yb-doped fiber with a 40 μm core
  • Compressed the pulse using a single-grating compressor with 86% efficiency
  • Achieved maximum output power of 37 W
  • Compressed pulse duration to 207 fs
  • Yielded pulse energy of 32 μJ and peak power of 154.6 MW
  • Maintained excellent beam quality with M2 factor of 1.04

Cite This Study

Shao et al. (2026) studied this question.

synapsesocial.com/papers/69a67eb2f353c071a6f0a131https://doi.org/10.3390/photonics13030240
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