研究目的
To develop a high power Tm:YLF Innoslab wavelength-selected laser without using a Fabry–Pérot etalon or a volume Bragg grating, by selecting the emission wavelength through different transmissions of the output coupler.
研究成果
The study successfully developed a high power Tm:YLF Innoslab wavelength-selected laser with a simple and effective method to obtain a single emission wavelength by varying the transmission of the output coupler. The laser demonstrated high output power, stability, and efficiency, making it suitable for pumping Ho:YAG (Ho:YLF) slab lasers.
研究不足
The study does not discuss the long-term durability of the laser system or its performance under varying environmental conditions. The beam quality in the horizontal direction is relatively poor (M2 = 520), which could limit certain applications.
1：Experimental Design and Method Selection:
A laser diode dual-end-pumped Tm:YLF slab laser was developed with a simple compact concave-concave stable resonator. The emission wavelength was selected by different transmissions of the output coupler without using a Fabry–Pérot etalon or a volume Bragg grating.
2：Sample Selection and Data Sources:
The Tm:YLF crystal used was doped at
3：5 at.% with dimensions of 20 × 12 × 2 mmThe pump light was coupled into the Tm:
YLF slab crystal using a coupling system.
4：List of Experimental Equipment and Materials:
The setup included laser diodes, a Tm:YLF slab crystal, a coupling system consisting of cylindrical lenses and a rectangular waveguide, and a concave-concave stable resonator with mirrors M1, M2, and M
5：Experimental Procedures and Operational Workflow:
The laser was operated with free running, and the output wavelength and power were measured under different transmissions of the output coupler.
6：Data Analysis Methods:
The output power and wavelength were measured, and the beam quality was analyzed using a spherical lens and a CCD camera.
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