A compact, high-power single-frequency laser based on Nd:YAG slab amplifier

Ding, Jianyong; Yu, Guangli; Zheng, Ruilin; Zhou, Jun; Zhu, Xiaolei; Duan, Weikuan; Fang, Chunqi; Wei, Wei

doi:10.1016/j.optcom.2020.125534

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…Thus, the demand for flashlamps as pump sources will be maintained in the future, and optimizing flashlamp-pumped lasers for better usability is a meaningful process. The latest issue with laser systems optimization is cost-effectively increasing the beam power and energy with system-scale miniaturization [13][14][15][16][17][18]. The gain module, commonly referred to as the pump chamber or laser head, is the most crucial laser system component.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Solid-State Laser Gain Module by Measurement of Thermal Effect and Energy Storage

Park

Jeong²,

Hwang³

et al. 2021

Photonics

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The optimization of solid-state laser cavities requires a deep understanding of the gain module, the most critical laser component. This study proposes a procedure for evaluating the performance of the solid-state laser gain module. The thermal effect and energy storage characteristics are the performance criteria. A normalized heating parameter was calculated as a quantitative indicator of the performance criteria. We proposed a method to quantify the heat dissipated into the gain medium using the wavefront distortion, thermal deformation theory of the gain medium, and the ray transfer matrix method. The suggested procedure was verified by evaluating the flashlamp type Nd:YAG rod gain module, but it can also even be extended to other solid-state laser gain modules by applying the appropriate thermal deformation theory.

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Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Solid-State Laser Gain Module by Measurement of Thermal Effect and Energy Storage

Park

Jeong²,

Hwang³

et al. 2021

Photonics

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Defect analysis during vacuum sintering of large Nd: YAG laser ceramics by FEM

Yao

Zhang

Chen

et al. 2021

J Mater Sci: Mater Electron

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Kinetics and wavelength dependence of thermal and excited-state population on lens effect induced in a Nd:YAG rod amplifier

Maillard

Amiard-Hudebine²,

Tondusson³

et al. 2023

Opt. Express

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Using a wavefront sensor, we have measured the temporal evolution of the lens induced in a Nd:YAG rod amplifier under side pumping by laser diode bars centered around 808 nm in a quasi-continuous wave regime. The evolution of the induced lens is drastically different when measured with a probe pulse centered at 532 nm or 1064.5 nm. To explain this evolution, we developed a model that accounts for both the excited state population of the Nd3+ ions and the thermal contribution to the refractive index of the amplifier. This model, which takes into account amplification and wavelength shift of the probe pulse at 1064.5 nm, makes it possible to quantitatively describe the spectral and temporal evolution of the amplifier focal length. It also shows that the excited state population contribution is more important around 1064.5 nm and can partly compensate for the thermal lens induced in the amplifier.

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A compact, high-power single-frequency laser based on Nd:YAG slab amplifier

Cited by 4 publications

References 16 publications

Performance Evaluation of Solid-State Laser Gain Module by Measurement of Thermal Effect and Energy Storage

Performance Evaluation of Solid-State Laser Gain Module by Measurement of Thermal Effect and Energy Storage

Defect analysis during vacuum sintering of large Nd: YAG laser ceramics by FEM

Kinetics and wavelength dependence of thermal and excited-state population on lens effect induced in a Nd:YAG rod amplifier

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