Watt-level Pr<sup>3+</sup>:YLF deep red laser pumped by a fiber-coupled blue LD module or a single-emitter blue LD

Miaomao He; Sheng Chen; Quanxin Na; Shaojuan Luo; Haiyong Zhu; Ying Li; Changwen Xu; Dianyuan Fan

doi:doi:10.3788/COL202018.011405

Chinese Optics Letters, 2020, 18 (1): 011405, Published Online: Dec. 30, 2019

Watt-level Pr³⁺:YLF deep red laser pumped by a fiber-coupled blue LD module or a single-emitter blue LD Download： 933次

Miaomao He ¹Sheng Chen ¹Quanxin Na ¹Shaojuan Luo ¹Haiyong Zhu ³Ying Li ^1,2Changwen Xu ^1,2,*Dianyuan Fan ^1,2

Author Affiliations

¹ International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China

² Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Shenzhen University, Shenzhen 518060, China

³ College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China

Figures & Tables

Fig. 1. Power characteristic of LD module and the output spectrum at the maximum output power.

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Fig. 2. Schematic diagram of Pr:YLF laser at 720.9 nm pumped by the 443.6 nm LD module.

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Fig. 3. (Top) 720.9 nm laser output curves of the 6-mm-long Pr:YLF crystal. (Bottom) 10-mm-long Pr:YLF crystal pumped by the 443.6 nm LD module.

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Fig. 4. Spectrum of the deep red laser at 720.9 nm.

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Fig. 5. (Left) Far field patterns of the laser beam recorded at different output power. (Right) Internal temperature distribution of 10-mm-long Pr:YLF crystal at 12 W absorbed power.

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Fig. 6. (Top) Absorption spectrum of Pr:YLF at 444 nm and wavelength-shift of single-emitter LD. (Bottom) Schematic diagram of Pr:YLF laser pumped by a single 446 nm LD and pump beam pattern at the focus point.

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Fig. 7. Output characteristics of 10-mm-long Pr:YLF pumped by single 446 nm LD. (Top) Focal length is 50 mm; (bottom) focal length is 80 mm.

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Miaomao He, Sheng Chen, Quanxin Na, Shaojuan Luo, Haiyong Zhu, Ying Li, Changwen Xu, Dianyuan Fan. Watt-level Pr³⁺:YLF deep red laser pumped by a fiber-coupled blue LD module or a single-emitter blue LD[J]. Chinese Optics Letters, 2020, 18(1): 011405.

Watt-level Pr³⁺:YLF deep red laser pumped by a fiber-coupled blue LD module or a single-emitter blue LD Download： 933次

Fig. 1. Power characteristic of LD module and the output spectrum at the maximum output power.

Fig. 2. Schematic diagram of Pr:YLF laser at 720.9 nm pumped by the 443.6 nm LD module.

Fig. 3. (Top) 720.9 nm laser output curves of the 6-mm-long Pr:YLF crystal. (Bottom) 10-mm-long Pr:YLF crystal pumped by the 443.6 nm LD module.

Fig. 4. Spectrum of the deep red laser at 720.9 nm.

Fig. 5. (Left) Far field patterns of the laser beam recorded at different output power. (Right) Internal temperature distribution of 10-mm-long Pr:YLF crystal at 12 W absorbed power.

Fig. 6. (Top) Absorption spectrum of Pr:YLF at 444 nm and wavelength-shift of single-emitter LD. (Bottom) Schematic diagram of Pr:YLF laser pumped by a single 446 nm LD and pump beam pattern at the focus point.

Fig. 7. Output characteristics of 10-mm-long Pr:YLF pumped by single 446 nm LD. (Top) Focal length is 50 mm; (bottom) focal length is 80 mm.

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Watt-level Pr3+:YLF deep red laser pumped by a fiber-coupled blue LD module or a single-emitter blue LD Download： 933次

Fig. 1. Power characteristic of LD module and the output spectrum at the maximum output power.

Fig. 2. Schematic diagram of Pr:YLF laser at 720.9 nm pumped by the 443.6 nm LD module.

Fig. 3. (Top) 720.9 nm laser output curves of the 6-mm-long Pr:YLF crystal. (Bottom) 10-mm-long Pr:YLF crystal pumped by the 443.6 nm LD module.

Fig. 4. Spectrum of the deep red laser at 720.9 nm.

Fig. 5. (Left) Far field patterns of the laser beam recorded at different output power. (Right) Internal temperature distribution of 10-mm-long Pr:YLF crystal at 12 W absorbed power.

Fig. 6. (Top) Absorption spectrum of Pr:YLF at 444 nm and wavelength-shift of single-emitter LD. (Bottom) Schematic diagram of Pr:YLF laser pumped by a single 446 nm LD and pump beam pattern at the focus point.

Fig. 7. Output characteristics of 10-mm-long Pr:YLF pumped by single 446 nm LD. (Top) Focal length is 50 mm; (bottom) focal length is 80 mm.

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Watt-level Pr³⁺:YLF deep red laser pumped by a fiber-coupled blue LD module or a single-emitter blue LD Download： 933次