研究目的
To demonstrate an orthogonally polarized dual-wavelength laser based on the intrinsic birefringence of the a-cut Nd:YAP gain crystal and to analyze the competition between the two lasing wavelengths.
研究成果
An orthogonal polarized 1079.5 nm and 1099 nm dual-wavelength Nd:YAP laser was successfully demonstrated, with a maximum output power of 976 mW and a slope conversion efficiency of 7%. The intrinsic birefringence of the gain material is key to generating orthogonal polarized lasers, and the competition between wavelengths is attributed to stark energy levels.
研究不足
The Fabry–Perot filter method only controls the reflection coefficient of the respective wavelengths and cannot select the oscillating wavelength like etalons, leading to changes in branch powers with pump power variations.
1：Experimental Design and Method Selection:
The study utilizes the intrinsic birefringence of the a-cut Nd:YAP gain crystal and a specially designed dielectric Fabry–Perot filter as the output coupler and gain balancer.
2：Sample Selection and Data Sources:
A
3：9atom% doped a-cut Nd:
YAP crystal is used.
4：List of Experimental Equipment and Materials:
The setup includes a fiber-pigtailed 803 nm pump source, plano-convex lenses, a Nd:YAP crystal, and a Fabry–Perot filter.
5：Experimental Procedures and Operational Workflow:
The laser output is filtered and separated by a beam separator, then analyzed for polarization and power.
6：Data Analysis Methods:
The competition between the two lasing wavelengths is analyzed based on their emission cross sections and stark energy levels.
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