900 nm wavelength laser based on KTiOPO4 optical parametric oscillation

Quan Zhou; Xinqiang Zhao; Hui Kong; Jintian Bian; Haiping Xu; Han Shu; Jierui Zou; Yuntao Xie

doi:10.3788/IRLA20240060

Journals >Infrared and Laser Engineering >Volume 53 >Issue 5 >Page 20240060 > Article

Infrared and Laser Engineering
Vol. 53, Issue 5, 20240060 (2024)

900 nm wavelength laser based on KTiOPO₄ optical parametric oscillation

Quan Zhou^1,2, Xinqiang Zhao^1,2, Hui Kong^1,2,*, Jintian Bian^1,2..., Haiping Xu^1,2, Han Shu^1,2, Jierui Zou^1,2 and Yuntao Xie^1,2,*|Show fewer author(s)

Author Affiliations

¹State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China

²Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China

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DOI: 10.3788/IRLA20240060 Cite this Article

Quan Zhou, Xinqiang Zhao, Hui Kong, Jintian Bian, Haiping Xu, Han Shu, Jierui Zou, Yuntao Xie. 900 nm wavelength laser based on KTiOPO₄ optical parametric oscillation[J]. Infrared and Laser Engineering, 2024, 53(5): 20240060 Copy Citation Text

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$(a) Three dimensional curve of phase mismatch Δk with respect to incident angle (\begin{document}$ \theta ,\varphi $\end{document}); (b) Phase matching curve under 532 nm laser pumping; (c) Angle tuning curve when \begin{document}$ \varphi $\end{document}=0°$

Fig. 1. (a) Three dimensional curve of phase mismatch Δk with respect to incident angle (

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); (b) Phase matching curve under 532 nm laser pumping; (c) Angle tuning curve when

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=0°

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Fig. 2. Schematic diagram of experimental setup (physical image of OPO experimental setup attached on the right)

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Fig. 3. Schematic diagram of the relationship between the number of rotations of the knob and the change in crystal rotation angle

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Fig. 4. Angle tuning output wavelength of KTO OPO

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Fig. 5. Diagram of the relationship between output energy (904 nm)and input energy (532 nm) under different repetition rates

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Number of rotations	−5	−4	−3	−2	−1	0	1	2	3	4	5
$ \mathrm{\theta } $/(°)	68.48	68.34	68.21	68.07	67.94	67.8	67.66	67.53	67.39	67.26	67.12
Output wavelength/nm	911.0	909.7	908.5	907.2	906.0	904.5	903.2	902.0	900.7	899.5	898.2

Table 1. The data of angle tuning

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