Lithium fluoride color center laser with an output energy of 100 J

Basiev, Tasoltan T.; Ershov, B. V.; Kravtsov, S. B.; Mirov, S B; Spiridonov, V. A.; Федоров, В. Б.

doi:10.1070/qe1985v015n06abeh007139

Cited by 11 publications

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“…The LiF:F − 2 crystal simultaneously operating as a passive Q-switch and intracavity load of the flash-lamp pumped neodymium-glass laser, and as an active element in the cavity of the color center laser was tested. 2,13 In our work we follow this idea. As a neodymium-doped laser active material we used diode pumped Nd:YVO 4 crystal which was investigated as an efficient laser material yielding to many successful laser systems (for example microchip laser).…”

Section: Introductionmentioning

confidence: 96%

Intracavity pumped gain-switched broadband LiF:F 2 - laser

et al. 2005

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Growing application of solid state lasers brings the requirements of new wavelengths generation together with a compact simple construction of laser system. We have demonstrated compact, diode pumped Nd:YVO 4 /LiF:F − 2 nanosecond laser source operating simultaneously at 1064 and 1143 nm wavelengths. The laser based on Nd:YVO 4 crystal gives an efficient output and offers various options for wavelength conversion. The LiF:F − 2 crystal inserted inside the resonator plays dual role of passive Q-switch for Nd:YVO 4 laser, and gain medium of color center oscillator. The 52 mm long cavity consisted of 0.25 % Nd 3+ doped YVO 4 and LiF:F − 2 crystal of 40 % initial transmission. The resonator output coupler with curvature radius of 150 mm has 5 % and 15 % transmission at 1064 and 1150 nm wavelengths, respectively. The rear mirror was HR for both wavelengths and AR for 810 nm diode pumping (20 W diode bar with beam shaper). The linear polarized at both wavelengths output pulses with the energy 6 and 2 µJ at 1064 nm and 1143 nm, respectively, were detected. The corresponding pulse length (FWHM) was 6.5 ns and 4.5 ns. The pulse frequency at each wavelength was about 75 kHz. The 15 nm width of spectrum centered at 1143 nm wavelength was measured. The multimode output with divergence angles of 5.2 × 3.5 mrad was evidenced. The pump threshold was about 6 W and maximum mean power was 0.145 W for 18 W pump power with duty factor of 25 %. This laser could be used for spectroscopic and other applications.

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Section: Introductionmentioning

confidence: 96%