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We demonstrate the first all-fiber monolithic bidirectional tandem pumping amplifier, to the best of our knowledge, based on a 30/250 µm conventional ytterbium-doped double-clad fiber. By optimizing the bidirectional pumping… Click to show full abstract
We demonstrate the first all-fiber monolithic bidirectional tandem pumping amplifier, to the best of our knowledge, based on a 30/250 µm conventional ytterbium-doped double-clad fiber. By optimizing the bidirectional pumping power distribution, an output power of 6.22 kW is obtained with near single-mode beam quality (M2=1.53), and no transverse mode instability is observed. This work could provide an excellent reference for high-power, higher-brightness fiber lasers.
Keywords:
single mode;
tandem pumping;
fiber;
bidirectional tandem;
near single;
mode
Journal Title: Applied optics
Year Published: 2022
Link to full text (if available)
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Journal Title: Applied optics
Year Published: 2022
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!