Efficient Actively Q-Switched Nd:YAP/YVO4 Raman Laser Operation at 1195 nm

Sun, Yuanyuan; Duan, Yucong; Zhang, Li; Yang, Zhouyi; Chen, Xiang; Zhu, Haiyong

doi:10.1007/s10946-020-09888-4

Cited by 3 publications

(1 citation statement)

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“…As an effective way to generate coherent light with new wavelengths, stimulated Raman scattering (SRS) has merits for preparing simple, compact, and robust laser sources [8][9][10]. Diverse crystals have been adopted for efficient Raman lasers, such as vanadates [11][12][13], tungstates [14][15][16][17], and molybdates [18]. Different from these commonly used Raman crystals, KTA and its isomorphs possess large Raman gain coefficient and small Raman shifts [19][20][21][22], such that it can generate a variety of high order Stokes lasers by cascade SRS.…”

Section: Introductionmentioning

confidence: 99%

Passively Q-Switched KTA Cascaded Raman Laser with 234 and 671 cm−1 Shifts

et al. 2021

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A compact KTA cascaded Raman system driven by a passively Q-switched Nd:YAG/Cr4+:YAG laser at 1064 nm was demonstrated for the first time. The output spectra with different cavity lengths were measured. Two strong lines with similar intensity were achieved with a 9 cm length cavity. One is the first-Stokes at 1146.8 nm with a Raman shift of 671 cm−1, and the other is the Stokes at 1178.2 nm with mixed Raman shifts of 234 cm−1 and 671 cm−1. At the shorter cavity length of 5 cm, the output Stokes lines with high intensity were still at 1146.8 nm and 1178.2 nm, but the intensity of 1178.2 nm was higher than that of 1146.8 nm. The maximum average output power of 540 mW was obtained at the incident pump power of 10.5 W with the pulse repetition frequency of 14.5 kHz and the pulse width around 1.1 ns. This compact passively Q-switched KTA cascaded Raman laser can yield multi-Stokes waves, which enrich laser output spectra and hold potential applications for remote sensing and terahertz generation.

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