Widely tunable and narrow-bandwidth pulsed mid-IR PPMgLN-OPO by self-seeding dual etalon-coupled cavities

Integrating narrow-bandwidth and wavelength tunability together is crucially important in upgrading the applications of optical parametric oscillators (OPO). Here, we have demonstrated a widely tunable, narrow-bandwidth and efficient mid-IR OPO pumped by a single-longitudinal-mode pulsed Yb-fiber la...

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Published inOptics express Vol. 25; no. 25; pp. 31810 - 31815
Main Authors Xing, Tinglun, Wang, Li, Hu, Shuwu, Cheng, Tingqing, Wu, Xianyou, Jiang, Haihe
Format Journal Article
LanguageEnglish
Published United States 11.12.2017
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Summary:Integrating narrow-bandwidth and wavelength tunability together is crucially important in upgrading the applications of optical parametric oscillators (OPO). Here, we have demonstrated a widely tunable, narrow-bandwidth and efficient mid-IR OPO pumped by a single-longitudinal-mode pulsed Yb-fiber laser. By restricting the bandwidth of the oscillated signal via self-seeding dual etalon-coupled cavities, the bandwidth of the idler can be suppressed to about 0.35 nm, with a wide tunable range of 2.85-3.05 μm, which can be achieved by synergistically adjusting the temperatures of PPMgLN crystal and one of the etalons. The maximum idler power at 3.031 μm is 2.67 W with an optical-to-optical conversion efficiency of 17.4%.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.25.031810