Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal

Jian Cheng; Hao Yang; Qi Liu; Mingjun Chen; Wenjing Ma; Jiubin Tan; Chenhui An; Zhichao Liu

doi:10.1117/12.2280519

Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal

Jian Cheng^*, Hao Yang, Qi Liu, Mingjun Chen, Wenjing Ma, Jiubin Tan, Chenhui An, Zhichao Liu

^*Corresponding author for this work

Design, Manufacturing And Engineering Management

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

3 Citations (Scopus)

Abstract

Micro-machining has been regarded as the most promising method to mitigate the laser damage growth on KDP/DKDP crystal surfaces. In this work, the near-field and far-field light modulations caused by three kinds of typical mitigation contours (spherical, Gaussian and conical) were theoretically investigated and compared to determine the optimal contours for achieving the minimum light intensification. Then, based on Computer Aided Manufacturing (CAM), a specific machining flow combining layer milling (rough repairing) and spiral milling (fine repairing) was developed to repair the surface damage with high efficiency and surface quality. Finally, the morphology, transmittance and laser damage resistance of the repaired KDP surfaces were tested. The theoretical and experimental results indicate that the conical mitigation contours mostly possess the best repaired surface quality and optical performance. The developed combined rough and fine machining flow could be applied as a practical repairing flow to mitigate the laser-induced surface damage growth of KDP crystal optics.

Original language	English
Title of host publication	49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017
Editors	Gregory J. Exarhos, Vitaly E. Gruzdev, Joseph A. Menapace, Detlev Ristau, MJ Soileau
Place of Publication	Bellingham, Washington
Number of pages	9
ISBN (Electronic)	9781510613638
DOIs	https://doi.org/10.1117/12.2280519
Publication status	Published - 13 Nov 2017
Event	49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017 - Boulder, United States Duration: 24 Sept 2017 → 27 Sept 2017

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10447
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017
Country/Territory	United States
City	Boulder
Period	24/09/17 → 27/09/17

Keywords

KDP crystal
laser damage resistance
micro-milling repairing
optics recycling
surface damage growth

Access to Document

10.1117/12.2280519

Cite this

Cheng, J., Yang, H., Liu, Q., Chen, M., Ma, W., Tan, J., An, C., & Liu, Z. (2017). Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal. In G. J. Exarhos, V. E. Gruzdev, J. A. Menapace, D. Ristau, & MJ. Soileau (Eds.), 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017 Article 104471L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10447).. https://doi.org/10.1117/12.2280519

Cheng, Jian ; Yang, Hao ; Liu, Qi et al. / Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal. 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017. editor / Gregory J. Exarhos ; Vitaly E. Gruzdev ; Joseph A. Menapace ; Detlev Ristau ; MJ Soileau. Bellingham, Washington, 2017. (Proceedings of SPIE - The International Society for Optical Engineering).

@inproceedings{38d259f1fad94606a57e48147cdc7281,

title = "Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal",

abstract = "Micro-machining has been regarded as the most promising method to mitigate the laser damage growth on KDP/DKDP crystal surfaces. In this work, the near-field and far-field light modulations caused by three kinds of typical mitigation contours (spherical, Gaussian and conical) were theoretically investigated and compared to determine the optimal contours for achieving the minimum light intensification. Then, based on Computer Aided Manufacturing (CAM), a specific machining flow combining layer milling (rough repairing) and spiral milling (fine repairing) was developed to repair the surface damage with high efficiency and surface quality. Finally, the morphology, transmittance and laser damage resistance of the repaired KDP surfaces were tested. The theoretical and experimental results indicate that the conical mitigation contours mostly possess the best repaired surface quality and optical performance. The developed combined rough and fine machining flow could be applied as a practical repairing flow to mitigate the laser-induced surface damage growth of KDP crystal optics.",

keywords = "KDP crystal, laser damage resistance, micro-milling repairing, optics recycling, surface damage growth",

author = "Jian Cheng and Hao Yang and Qi Liu and Mingjun Chen and Wenjing Ma and Jiubin Tan and Chenhui An and Zhichao Liu",

year = "2017",

month = nov,

day = "13",

doi = "10.1117/12.2280519",

language = "English",

isbn = "9781510613621",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

editor = "Exarhos, {Gregory J.} and Gruzdev, {Vitaly E.} and Menapace, {Joseph A.} and Detlev Ristau and MJ Soileau",

booktitle = "49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017",

note = "49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017 ; Conference date: 24-09-2017 Through 27-09-2017",

}

Cheng, J, Yang, H, Liu, Q, Chen, M, Ma, W, Tan, J, An, C & Liu, Z 2017, Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal. in GJ Exarhos, VE Gruzdev, JA Menapace, D Ristau & MJ Soileau (eds), 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017., 104471L, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10447, Bellingham, Washington, 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017, Boulder, United States, 24/09/17. https://doi.org/10.1117/12.2280519

Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal. / Cheng, Jian; Yang, Hao; Liu, Qi et al.
49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017. ed. / Gregory J. Exarhos; Vitaly E. Gruzdev; Joseph A. Menapace; Detlev Ristau; MJ Soileau. Bellingham, Washington, 2017. 104471L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10447).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

TY - GEN

T1 - Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal

AU - Cheng, Jian

AU - Yang, Hao

AU - Liu, Qi

AU - Chen, Mingjun

AU - Ma, Wenjing

AU - Tan, Jiubin

AU - An, Chenhui

AU - Liu, Zhichao

PY - 2017/11/13

Y1 - 2017/11/13

N2 - Micro-machining has been regarded as the most promising method to mitigate the laser damage growth on KDP/DKDP crystal surfaces. In this work, the near-field and far-field light modulations caused by three kinds of typical mitigation contours (spherical, Gaussian and conical) were theoretically investigated and compared to determine the optimal contours for achieving the minimum light intensification. Then, based on Computer Aided Manufacturing (CAM), a specific machining flow combining layer milling (rough repairing) and spiral milling (fine repairing) was developed to repair the surface damage with high efficiency and surface quality. Finally, the morphology, transmittance and laser damage resistance of the repaired KDP surfaces were tested. The theoretical and experimental results indicate that the conical mitigation contours mostly possess the best repaired surface quality and optical performance. The developed combined rough and fine machining flow could be applied as a practical repairing flow to mitigate the laser-induced surface damage growth of KDP crystal optics.

AB - Micro-machining has been regarded as the most promising method to mitigate the laser damage growth on KDP/DKDP crystal surfaces. In this work, the near-field and far-field light modulations caused by three kinds of typical mitigation contours (spherical, Gaussian and conical) were theoretically investigated and compared to determine the optimal contours for achieving the minimum light intensification. Then, based on Computer Aided Manufacturing (CAM), a specific machining flow combining layer milling (rough repairing) and spiral milling (fine repairing) was developed to repair the surface damage with high efficiency and surface quality. Finally, the morphology, transmittance and laser damage resistance of the repaired KDP surfaces were tested. The theoretical and experimental results indicate that the conical mitigation contours mostly possess the best repaired surface quality and optical performance. The developed combined rough and fine machining flow could be applied as a practical repairing flow to mitigate the laser-induced surface damage growth of KDP crystal optics.

KW - KDP crystal

KW - laser damage resistance

KW - micro-milling repairing

KW - optics recycling

KW - surface damage growth

U2 - 10.1117/12.2280519

DO - 10.1117/12.2280519

M3 - Conference contribution book

AN - SCOPUS:85045145584

SN - 9781510613621

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017

A2 - Exarhos, Gregory J.

A2 - Gruzdev, Vitaly E.

A2 - Menapace, Joseph A.

A2 - Ristau, Detlev

A2 - Soileau, MJ

CY - Bellingham, Washington

T2 - 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017

Y2 - 24 September 2017 through 27 September 2017

ER -

Cheng J, Yang H, Liu Q, Chen M, Ma W, Tan J et al. Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal. In Exarhos GJ, Gruzdev VE, Menapace JA, Ristau D, Soileau MJ, editors, 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017. Bellingham, Washington. 2017. 104471L. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2280519

Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal

Abstract

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