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Short-length microstructured phosphate glass fiber lasers with large mode areas
L Li1, A Schülzgen, V L Temyanko
1Optical Sciences Center, University of Arizona, Tucson, Arizona 85721, USA. lli@email.arizona.edu
Optics Letters
|June 10, 2005
Summary
Researchers developed novel phosphate glass fiber lasers using large, doped cores. These lasers achieve over 3 W of continuous wave power with excellent beam quality.
Area of Science:
- Materials Science
- Optoelectronics
- Laser Physics
Background:
- Microstructured fiber lasers offer unique light manipulation capabilities.
- Phosphate glasses are promising host materials for rare-earth-doped lasers.
Purpose of the Study:
- To fabricate and test the first phosphate glass microstructured fiber lasers.
- To investigate the performance of large, Er-Yb-codoped cores in these lasers.
Main Methods:
- Fabrication of phosphate glass microstructured fibers with large Er-Yb-codoped cores.
- Characterization of the fiber laser performance under cladding-pumping.
Main Results:
- Demonstrated continuous wave (CW) output power exceeding 3 W for an 11-cm-long fiber laser.
- Achieved near single-mode beam quality with an active core area larger than 400 microm2.
Conclusions:
- Phosphate glass microstructured fiber lasers with large Er-Yb-codoped cores are feasible.
- These lasers show potential for high-power, high-beam-quality applications.