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Main > Chinese Optics Letters >  Volume 18 >  Issue 6 >  Page 061402 > Article
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    • Received: Feb. 10, 2020

    Accepted: Mar. 6, 2020

    Posted: May. 13, 2020

    Published Online: May. 14, 2020

    The Author Email: Yading Guo (adenguo@gmail.com)

    DOI: 10.3788/COL202018.061402

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    Lei Huang, Yamin Zheng, Yading Guo, Lin Zhang, Chuang Sun, Xiaojun Wang. 21.2 kW, 1.94 times diffraction-limit quasi-continuous-wave laser based on a multi-stage, power-scalable and adaptive optics controlled Yb:YAG master-oscillator-power-amplifier system[J]. Chinese Optics Letters, 2020, 18(6): 061402

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Configuration of the laser based on a MOPA system with an AO control part.

Fig. 1. Configuration of the laser based on a MOPA system with an AO control part.

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Outside view of an amplification component.

Fig. 2. Outside view of an amplification component.

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(a) Output power and (b) beam quality of the laser without AO control.

Fig. 3. (a) Output power and (b) beam quality of the laser without AO control.

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(a) Outside view and (b) actuator distributions of the DM.

Fig. 4. (a) Outside view and (b) actuator distributions of the DM.

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Wavefront correction results of Zernike mode aberrations. (a) 3rd before and (b) after correction. (c) 7th before and (d) after correction. (e) 11th before and (f) after correction.

Fig. 5. Wavefront correction results of Zernike mode aberrations. (a) 3rd before and (b) after correction. (c) 7th before and (d) after correction. (e) 11th before and (f) after correction.

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(a) PV and (b) RMS correction results of Zernike mode aberrations.

Fig. 6. (a) PV and (b) RMS correction results of Zernike mode aberrations.

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Far-field spot distribution correction results of Zernike mode aberrations. (a) 3rd before and (b) after correction. (c) 7th before and (d) after correction. (e) 11th before and (f) after correction.

Fig. 7. Far-field spot distribution correction results of Zernike mode aberrations. (a) 3rd before and (b) after correction. (c) 7th before and (d) after correction. (e) 11th before and (f) after correction.

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HBQ correction results of Zernike mode aberrations.

Fig. 8. HBQ correction results of Zernike mode aberrations.

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(a) Output laser beam. Far-field spot distribution of output laser beam (b) without and (c) with AO correction.

Fig. 9. (a) Output laser beam. Far-field spot distribution of output laser beam (b) without and (c) with AO correction.

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