Transverse modes of a diode-laser pumped monolithic unidirectional non-planar ring laser

Diode-laser pumped monolithic single-frequency non-planar ring laser has the advantages of compactness, reliability and high efficiency. But when the pump power is high enough, the thermal effect will be serious and the high-order transverse modes will appear. Therefore the single-mode output power is limited. In this paper, the mechanism of generating the high-order transverse modes in the monolithic unidirectional non-planar ring cavity is analyzed using ray tracing method. The calculated results are in agreement with the experiments.     

A Step—by—Step Tunable Compound External Cavity Semiconductor Laser with Two—Side Feedback Coupling

A kind of compound external cavity semiconductor lasers(CECSL) is presented,by which laser with a discretely tunable wavelength can be obtained to meet the potential demands of the wavelength division multiplexing system.By the introduction of two-side feedback coupling in the CECSL,the CeCSL can operate more efficiently,and its side-mode suppression ratio is high up to 50dB.     

激光二极管抽运非平面单向行波环形腔单频固体激光器的设计

激光二极管抽运的单块非平面环形腔固体激光器具有结构稳固、效率高等优点 ,在一定的纵向磁场作用下 ,可形成单向行波振荡 ,纵向抽运时就可得到较高功率的单频输出 ,有广泛的应用前景。文中在详细讨论了非平面单向行波环形腔形成单频的原理基础上 ,研究了国际上流行的“三角形”单块非平面环形腔 ,并用此种腔型得到 2 70 m W的基横模单纵模 1.0 6μm激光 ;同时提出了所设计的非平面环形腔“梯形环形腔”和“角锥棱镜式环形腔”。由于它们工作原理相近 ,统称它们为“泛三角形非平面单向行波环形腔”。     

激光二级管抽运非平面向行波环形腔单频固体激光器的设计

激光二极管抽运的单块非平面环形腔固体激光器具有结构稳固、效率高等优点,在一定的纵向磁场作用下,可形成单向行波振荡,纵向抽运时就可得到较高功率的单频输出,有广泛的应用前主。文中在详细讨论了非平面单向行波环形腔形成单频的原理基础上,研究了国际上流行的“三角形”单块非平面环形腔,并用此种腔型得到270mW的基横模单纵模1.06um激光;同时提出了所设计的非平面环形腔－－“梯形环形腔”和“角锥棱镜式环形腔”。由于它们工作原理相近,统称它们为“泛三角形非平面单向行波环形腔”。