ZnSe:Cr2+ coherently pumped laser

Koranda, Petr; Jelı́nková, Helena; Šulc, Jan; Němec, Michal; Doroshenko, Maxim E.; Basiev, Tasoltan T.; Komar, V. K.; Kosmyna, M. B.

doi:10.1016/j.optmat.2006.11.020

Cited by 12 publications

(8 citation statements)

References 3 publications

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“…The slope-efficiency with respect to the absorbed energy was 15%. The width of the oscillation spectrum was ∼ 100 nm and its maximum was shifted towards the longer wavelength with respect to the previously published [11][12][13] Cr.ZnSe laser about 80 nm (Fig. 6).…”

Section: Er:yag Pump Sourcesupporting

confidence: 47%

Tunable mid-infrared laser properties of Cr2+:ZnMgSe and Fe2+:ZnSe crystals

et al. 2010

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Section: Er:yag Pump Sourcesupporting

confidence: 47%

Tunable mid-infrared laser properties of Cr2+:ZnMgSe and Fe2+:ZnSe crystals

et al. 2010

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“…The detailed description of the crystal growth process was published in the previous publications [5,6]. The concentration of Cr 2+ ions in the ZnSe matrix was from 1x10 17 cm -3 to 2x10 19 cm -3 .…”

Section: Cr:znse Active Laser Crystal Productionmentioning

confidence: 99%

Mid-infrared tunable laser based on the Cr:ZnSe active crystal

et al. 2008

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Broadly tunable mid-infrared laser sources operated at room-temperature are desired in many technological and medical applications. The aim of the project was to design and construct broadly tunable powerful Cr:ZnSe laser. The investigated Cr:ZnSe various shaped bulk crystals were grown by the Bridgman method or by the floating zone method. The absorption spectrum was measured to be from 1500 to 2000 nm and the emission spectrum was from 2100 to 2800 nm. Three different lasers were utilized for coherent longitudinal pumping of Cr:ZnSe laser, namely flashlamppumped Er:YAP laser (generated wavelength 1660 nm), diode-pumped Tm:YLF laser (generated wavelength 1912 nm) and diode-pumped Tm:YAP laser (generated wavelength 1980 nm). The constructed Cr:ZnSe laser operated in pulsed as well as in continuous-wave regime. In the first case the Cr:ZnSe crystal grown by the floating zone method was studied. The maximal output power in continuous-wave regime was 310 mW with the slope-efficiency 73% for the Tm:YAP laser pumping. In the second case the Cr:ZnSe prism grown by the Bridgman method which served simultaneously as laser active medium and intracavity dispersive element was investigated. For the Er:YAP laser pumping the maximal output energy was 20 mJ with the slope-efficiency 36%. The output radiation was tunable in the range from 2050 nm up to 2750 nm. For the Tm:YAP laser pumping the maximal output power in continuous-wave regime was 175 mW with the slope-efficiency 24%. The output radiation was tunable in the interval from 2220 nm up to 2680 nm. The generated radiation beam spatial structure was close to TEM00.

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“…In this case bulk crystals mainly based on a chalcogenide host with various transition metal dopants are investigated [5][6][7] . In the last twenty years such materials as Cr:ZnSe, Cr:ZnS, and Cr:CdSe were proved as the active media for the tunable lasers in the range of 2.0 -3.5 μm [8][9][10][11][12][13][14][15][16][17][18][19] .…”

Section: Introductionmentioning

confidence: 99%

Tunable Fe,Cr:ZnMgSe gain-switched mid-IR laser operating at room temperature

et al. 2012

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The goal of this work was to design and investigate the gain switched new Fe,Cr:ZnMgSe laser operating at the room temperature. The pumping was provided by the electro-optically Q-switched Er:YAG laser with the oscillation wavelength of 2.937 µm which matching the absorption line of the Fe,Cr:ZnMgSe crystal. The Q-switched operation was obtained by the Brewster angle cut LiNbO 3 Pockels cell placed between the rear mirror and the laser active medium. The output radiation parameters were: the energy of 10 mJ, pulse duration of 120 ns, and repetition rate 1 Hz.The pump radiation was directed into the Fe,Cr:ZnMgSe crystal placed inside the 16 mm long hemi-spherical cavity formed by the dichroic pumping mirror (T = 86 % at 2.94 µm and R = 100% for 4 -5 µm) and the output coupler with the reflectance R = 95 % at 4 -5 µm and radius of curvature r = 500 mm. The maximum output Fe,Cr:ZnMgSe laser energy was 160 µJ corresponding the slope efficiency 4 % (with respect to absorbed energy). The generated radiation wavelength was 4.8 µm with the linewidth of 100 nm (FWHM). The output beam spatial profile was approximately Gaussian in both axes.Laser tuning properties were investigated by the Lyot filter (MgF 2 plate, 2 mm thick) inserted into the resonator providing the tuning range from 4.5 to 4.9 µm. The results were compared with the Fe:ZnSe crystal operated at the same conditions.

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ZnSe:Cr2+ coherently pumped laser

Cited by 12 publications

References 3 publications

Tunable mid-infrared laser properties of Cr2+:ZnMgSe and Fe2+:ZnSe crystals

Tunable mid-infrared laser properties of Cr2+:ZnMgSe and Fe2+:ZnSe crystals

Mid-infrared tunable laser based on the Cr:ZnSe active crystal

Tunable Fe,Cr:ZnMgSe gain-switched mid-IR laser operating at room temperature

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