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High power cryogenic Ho:YAG laser
Optics Express
|December 17, 2017
Summary
Researchers achieved 65 W output power from a cryogenic Ho:YAG laser, demonstrating scalable performance for high-power laser applications. This advancement highlights efficient laser technology for scientific and industrial use.
Area of Science:
- Laser Physics
- Materials Science
Background:
- Cryogenic lasers offer enhanced performance.
- Ho:YAG lasers are crucial for specific wavelength applications.
Purpose of the Study:
- To significantly improve the brightness and output power of cryogenic Ho:YAG lasers.
- To demonstrate the scalability of the laser system.
Main Methods:
- Utilizing a cryogenic laser head.
- Employing a narrow-line thulium fiber pump laser.
Main Results:
- Achieved up to 65 W output power.
- Reported a beam quality of M² <1.3.
- Obtained a slope efficiency of 71% with ~2 nm wide emission centered at 2097.5 nm.
Conclusions:
- The results demonstrate the scalability of both the pump laser and the cryogenic laser head.
- This advancement paves the way for higher-power cryogenic laser systems.
