理论和实验结果都表明引起铥激光器高阈值的主要原因是温度引起的激光下能级的热分布粒子。
It's proved that the cause of high threshold of thulium laser is the heat-distribution particle at low laser energy level.
本实用新型可调谐掺铥光纤激光器，具有功率高、调谐范围大、操作方便和应用范围广等特点。
The tunable thulium doped fiber laser has features that: high power, large tuning range, convenient operation and large application range.
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