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Investigation of a passively Q-switched Raman laser at 1176 nm with Nd3+:YAG/Cr4+:YAG/YAG composite crystal and a coupled cavity

  • Cong Jiang
  • YinYao Chen
  • ShaoHong Mei
  • SiQi ZhuEmail author
  • Zhen Li
  • Wei Jiang
  • HaiQiong Zhou
  • ZhenQiang Chen
  • EnCai Ji
Original Research
  • 20 Downloads

Abstract

To reduce the thermal lens effect and increase the efficiency, a composite crystal of Nd3+:YAG/Cr4+:YAG/YAG and a coupled cavity structure were employed in our passively Q-switched YVO4-based Raman laser system. Both the simulation and the experiment results showed that the undoped YAG crystal bonded in the end-face of Cr4+:YAG crystal can speed up the heat transfer of Cr4+:YAG crystal and reduce the temperature difference between its side surfaces and the center significantly, and the coupled cavity structure can improve the laser performance, especially at high pump power. The maximum output power of Raman laser of 0.92 W at 1176 nm was obtained with an optical-to-optical efficiency of 11.51%. The corresponding repetition rate and the pulse width is 53.5 kHz and 3.22 ns, respectively.

Keywords

Finite element method Temperature field Composite crystal Coupled cavity Raman Passively Q-switched 

Notes

Acknowledgements

Thanks to Dr. Teng Li for providing technical support for the experiment.

Funding

This work was supported by the National Key Research and Development Program of China (2017YFB1104500); National Natural Science Foundation of China (NSFC) (51702124, 61735005, 11704155, 61605062); Guangdong Project of Science and Technology Grants, China (2018B030323017, 2017KTSCX012); The Research project of scientific research cultivation and innovation fund of Jinan University, China (11617329). Guangzhou science and technology project, China (201903010042, 201904010294).

References

  1. Basiev, T.T., Sigachev, V.B., Doroshenko, M.E., Papashvili, A.G., Zverev, P.G., Osiko, V.V.: Passive Q-switching of 1.3-um Nd-lasers with Nd2+:SrF2 and V3+:YAG crystalline saturable absorbers and application to Raman shifting to the eye-safe region. In: Laser Methods of Surface Treatment and Modification: ALT '94 International Conference, pp. 171–178 (1995)Google Scholar
  2. Brown, D.C.: Nonlinear thermal distortion in YAG rod amplifiers. IEEE J. Quantum Electron. 34(12), 2383–2392 (1998)ADSCrossRefGoogle Scholar
  3. Chen, M., Dai, S., Zhu, S., Yin, H., Li, Z., Chen, Z.: Multi-watt passively Q-switched self-Raman laser based on a c-cut Nd:YVO4 composite crystal. J. Opt. Soc. Am. B 36(2), 524–532 (2019)ADSCrossRefGoogle Scholar
  4. Ding, S., Wang, M., Wang, S., Zhang, W.: Investigation on LD end-pumped passively Q-switched c-cut Nd: YVO4 self-Raman laser. Opt. Express 21(11), 13052–13061 (2013)ADSCrossRefGoogle Scholar
  5. Duan, Y., Zhu, H., Huang, C., Zhang, G., Wei, Y.: Potential sodium D2 resonance radiation generated by intra-cavity SHG of a c-cut Nd:YVO4 self-Raman laser. Opt. Express 19(7), 6333–6338 (2011)ADSCrossRefGoogle Scholar
  6. Ge, W., Zhang, H., Wang, J., Cheng, X., Jiang, M., Du, C., Yuan, S.: Pulsed laser output of LD-end-pumped 1.34 µm Nd:GdVO4 laser with Co:LaMgAl11O19 crystal as saturable absorber. Opt. Express 13(10), 3883–3889 (2005)ADSCrossRefGoogle Scholar
  7. Jiang, P., Zhang, G., Liu, J., Ding, X., Sheng, Q., Yu, X., Sun, B., Shi, R., Wu, L., Wang, R., Yao, J.: 16.7 W 885 nm diode-side-pumped actively Q-switched Nd:YAG/YVO4 intracavity Raman laser at 1176 nm. J. Phys. D: Appl. Phys. 50(46), 465303 (2017a)ADSCrossRefGoogle Scholar
  8. Jiang, W., Li, Z., Zhu, S., Yin, H., Chen, Z., Zhang, G., Chen, W.: YVO4 Raman laser pumped by a passively Q-switched Yb:YAG laser. Opt. Express 25(13), 14033–14042 (2017b)ADSCrossRefGoogle Scholar
  9. Kimmelma, O., Tittonen, I.: Passively Q-switched Nd:YAG pumped UV lasers at 280 and 374 nm. Opt. Commun. 282(14), 2930–2933 (2009)ADSCrossRefGoogle Scholar
  10. Lin, H.Y., Huang, X.H., Sun, D., Xu, Y.C., Xiao, M., Zhu, W.Z.: Compact efficient Cr:YAG passively Q-switched c-cut Nd:YVO4 self-Raman laser. J. Opt. Technol. 83(10), 590–592 (2016a)CrossRefGoogle Scholar
  11. Lin, H.Y., Pan, X., Huang, X.H., Xiao, M., Xu, Y.C., Zhu, W.Z.: Cr4+:YAG passively Q-switched c-cut Nd:YVO4 self-Raman laser at 1168.6 nm. Infrared Phys. Technol. 75, 56–58 (2016b)ADSCrossRefGoogle Scholar
  12. Shayeganrad, G.: Actively Q-switched Nd:YVO4 dual-wavelength stimulated Raman laser at 1178.9 nm and 1199.9 nm. Opt. Commun. 292, 131–134 (2013)ADSCrossRefGoogle Scholar
  13. Šulc, J., Arátor, P., Jelínková, H., Nejezchleb, K., Škoda, V., Kokta, M.R.: Solid state saturable absorbers for Q-switching at 1 and 1.3 um: investigation and modeling. In: Lasers and Applications in Science and Engineering, pp. 68712D1–68712D11 (2008)Google Scholar
  14. Wei, L., Chen, M., Zhu, S., Dai, S., Yin, H., Chen, Z.: A passively Q-switched YVO4 Raman laser with orthogonally polarized emission at 1175.4 nm and 1165.2 nm. Laser Phys. Lett. 15(12), 125001–125007 (2018)ADSCrossRefGoogle Scholar
  15. Xu, H., Zhang, X., Wang, Q., Wang, C., Wang, W., Li, L., Liu, Z., Cong, Z., Chen, X., Fan, S., Zhang, H., Tao, X.: Diode-pumped passively Q-switched Nd:YAG/SrWO4 intracavity Raman laser with high pulse energy and average output power. Appl. Phys. B 107(2), 343–348 (2012)ADSCrossRefGoogle Scholar
  16. Zhang, J., Fan, Z.W., Qi, Y., Bi, Y., Shi, Z.H., Zhang, Y., Pei, B., Zhao, J.B.: Efficient intracavity dispersion Q. CW Nd:YAG UV laser. J. Optoelectron. Laser 17(12), 1474–1476 (2006)Google Scholar
  17. Zhou, H., Zhu, S., Jiang, W., Li, Z., Wang, Y., Yin, H., Chen, Z., Yuan, J.: Diode-end-pumped passively Q-switched blue laser with Nd:YAG/YAG/Cr4+:YAG/YAG composite crystal. Optik 127(22), 10588–10592 (2016)ADSCrossRefGoogle Scholar
  18. Zhu, S., Jiang, W., Liu, Y., Yin, H., Chen, Z., Li, Z., Li, A., Chen, Y., Su, K.: Pulse Fluctuations Caused by the Thermal Lens Effect in a Passively Q-Switched Laser System. J. Russ. Laser Res. 36(4), 377–384 (2015)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Cong Jiang
    • 1
    • 3
  • YinYao Chen
    • 1
    • 2
  • ShaoHong Mei
    • 1
    • 2
  • SiQi Zhu
    • 1
    • 2
    Email author
  • Zhen Li
    • 1
    • 2
  • Wei Jiang
    • 1
    • 2
  • HaiQiong Zhou
    • 1
    • 2
  • ZhenQiang Chen
    • 1
    • 2
  • EnCai Ji
    • 4
  1. 1.Guangdong Provincial Engineering Research Center of Crystal and Laser TechnologyGuangzhouChina
  2. 2.Department of Optoelectronic EngineeringJinan UniversityGuangzhouChina
  3. 3.School of Mechanics and Construction EngineeringJinan UniversityGuangzhouChina
  4. 4.Han’s Laser Technology Industry Group Co., LtdShenzhenChina

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