Spectral beam combining for a diode laser array by using a grating pair

Zhu Zhanda; Gou Long; Jiang Menghua; Hui Yongling; Lei Hong; Li Qiang

doi:10.11884/HPLPB201527.041005

Volume 27 Issue 04

Mar. 2015

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Article Navigation > High Power Laser and Particle Beams > 2015 > 27(04): 041005

Liang Zhenhe, Zhou Changlin, Yu Daojie, et al. Analysis and measurement of temperature effect on electromagnetic susceptibility of embedded ADC[J]. High Power Laser and Particle Beams, 2017, 29: 053002. doi: 10.11884/HPLPB201729.170024

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Zhu Zhanda, Gou Long, Jiang Menghua, et al. Spectral beam combining for a diode laser array by using a grating pair[J]. High Power Laser and Particle Beams, 2015, 27: 041005. doi: 10.11884/HPLPB201527.041005

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Spectral beam combining for a diode laser array by using a grating pair

doi: 10.11884/HPLPB201527.041005

1.
Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,China

Received Date: 2014-08-25
Rev Recd Date: 2014-12-08
Publish Date: 2015-03-23

Abstract

Abstract

A grating and a collimating lens are used to replace the transformer lens in the traditional spectral beam combining structure. As a result, the degradation of the beam quality and the cross-talk are prevented. A spectral beam combining with narrow line-width is achieved. A standard semiconductor laser array is employed in this experiment. An output power of 44.8 W and an electro-optic conversion efficiency of 38.9% are achieved. The spectral line-width is 4.1 nm. A beam quality factor of 1.3711.7 in fast and slow axis directions are obtained. The beam quality of the output is close to that of a single emitter of the array in both directions.
- diode laser arrays,
- wavelength beam combining,
- spectral beam combining,
- grating,
- cross-talk

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沈阳化工大学材料科学与工程学院沈阳 110142

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Spectral beam combining for a diode laser array by using a grating pair

doi: 10.11884/HPLPB201527.041005

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Spectral beam combining for a diode laser array by using a grating pair

doi: 10.11884/HPLPB201527.041005

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