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Diode—Pumped Compact cw frequency—doubled Nd：YAG Laser in the watt Range at 473nm

Chinese Physics Letters 2003年第7期20卷 1064-1066页

作者：李平雪李德华张治国张世文 LaboratoryofOpticalphysics InstituteofphysicschineseAcademyofSciencesBeijing100080 NorthChinaResearchInstituteofElectro-Optics Beijing100015

We report a diode-pumped cw Nd:YAG laser operating on the 4F3/2-4I9/2 transition at 946nm, for which a maximum output power of 4.5W with a slope efficiency of 21% is achieved at an incident pump power of 26W. Two LiB3O5 (LBO) crystals of different lengths (3×3×10mm and 3×3×15mm), cut for critical type I phase matching at room temperature, have been used for intracavity frequency doubling, and through optimization of the structure and elements of the cavity, a maximum single-ended blue output power of 1.1W has been obtained with an optical conversion efficiency of 4.2%. A stability better than 4.8% with no mode hopping over a period of 2h has been achieved.

关键词： Diode-Pumped frequency-doubled Nd:YAG Laser Watt Range 473 nm

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Stable continuous-wave single-frequency intracavity frequency-doubled laser with intensity noise suppressed in audio frequency region

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Chinese Physics B 2019年第9期28卷 197-202页

作者：高英豪李渊骥冯晋霞张宽收 State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-ElectronicsShanxi UniversityTaiyuan 030006China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

We demonstrated a continuous wave(cw) single-frequency intracavity frequency-doubled Nd:YVO_4/LBO laser with 532 nm output of 7.5 W and 1.06 μm output of 3.1 W, and low intensity noise in audio frequency *** suppress the intensity noise of the high power 532 nm laser, a laser frequency locking system and a feedback loop based on a Mach-Zehnder interferometer were designed and *** influences of the frequency stabilization and the crucial parameters of the MZI, such as the power splitting ratio of the beam splitters and the locking state of the MZI, on the intensity noise of the 532 nm laser were investigated in *** the experimental optimizations, the laser intensity noise in the frequency region from 0.4 kHz to 10 kHz was significantly suppressed.

关键词： continuous wave single-frequency intracavity frequency-doubled laser noise suppression power stabilization audio frequency

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