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Dynamic wavelength switching and continuous tunability in a composite Tm/Ho:YLF laser
Optics Letters
|June 13, 2025
Summary
This study introduces a novel wavelength-conversion laser system using thulium (Tm) and holmium (Ho):YLF crystals. The system offers flexible switching and tunable output for both Tm and Ho lasers, enabling diverse applications.
Area of Science:
- Laser Physics
- Materials Science
Background:
- Thulium (Tm) and Holmium (Ho) lasers are crucial for various applications.
- Existing laser systems often lack flexibility in wavelength selection and tunability.
Purpose of the Study:
- To develop a novel wavelength-conversion laser system.
- To achieve flexible switching and independent tunability between Tm and Ho laser outputs.
Main Methods:
- Utilized Tm/Ho:YLF composite crystals.
- Implemented a switchable output coupling system.
- Incorporated Fabry-Pérot (F-P) etalons for wavelength tuning.
Main Results:
- Achieved maximum Tm laser power of 2.99 W at 1903.68 nm and Ho laser power of 2.61 W at 2064.60 nm with 20.74 W pump power.
- Demonstrated continuous tuning of Tm lasers (1875.60–1885.31 nm, 1902.75–1904.75 nm) and Ho lasers (2050.75–2064.60 nm) at 14.19 W pump power.
- Successfully integrated switchable output coupling and F-P etalons for versatile laser operation.
Conclusions:
- The developed system provides flexible and tunable wavelength conversion using Tm/Ho:YLF crystals.
- This innovative laser system has broad application prospects due to its adaptability.
- The system meets diverse laser requirements for various scientific and industrial applications.
