Generation of all-solid-state, high-power continuous-wave 213-nm light based on sum-frequency mixing in CsLiB_6O_10

Sakuma, Jun; Asakawa, Yuichi; Imahoko, Tomohiro; Obara, Minoru

doi:10.1364/ol.29.001096

Cited by 23 publications

(18 citation statements)

References 9 publications

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“…• with dimension of 4×4×10 mm 3 . Both entrance and the exit surfaces of the SHG crystal KTP were AR coated at 1064 nm and 532 nm.…”

Section: Methodsmentioning

confidence: 99%

“…At present, both at home and abroad, researches of the LD-pumped 355 nm lasers are mainly carried out on the continuous or high repetition rate quasi-continuous wave UV lasers [1][2][3][4][5][6][7], which focusing on improving the average output power of UV laser, and the peak power is only a few to tens of kW. As far as we know, few work are reported on the UV pulse laser at 355 nm with a pulse width less than 10 ns and a peak power at megawatt level.…”

Section: Introductionmentioning

confidence: 99%

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Electro-optical Q-switch low-repetition-rate narrowpulse-width UV pulse laser at 355 nm generated by pulsed-diode-pumped Nd:YAG

Bai

Shen

et al. 2009

Laser Phys. Lett.

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Abstract:We report an electro-optical Q-switch ultraviolet laser at 355 nm with narrow width and low repetition rate generated by pulsed-diode side-pumped Nd:YAG/KTP/LBO. The single-pulse energy is measured to be 18.7 mJ with a pulse-width of 7.32 ns at a repetition rate of 1 Hz and a pump current of 120 A. We can obtain the output laser of 1064 nm, 532 nm, and 355 nm simultaneously by using a volume of beam splitting mirrors, and the average output power of the three lasers are measured to be 589.8 mW, 305.6 mW, and 218.2 mW, respectively, corresponding to a conversion efficiency of 12.69% from 1064 nm to 355 nm.355 nm ultraviolet laser spot photo

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“…• with dimension of 4×4×10 mm 3 . Both entrance and the exit surfaces of the SHG crystal KTP were AR coated at 1064 nm and 532 nm.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electro-optical Q-switch low-repetition-rate narrowpulse-width UV pulse laser at 355 nm generated by pulsed-diode-pumped Nd:YAG

Bai

Shen

et al. 2009

Laser Phys. Lett.

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“…In some industrial and medical fields there has been a great desire for ultra precision machining who demands that UV light should have high beam quality. However, the performance of solid-state UV lasers depends greatly on the UV generation ability and reliability of nonlinear optical (NLO) crystals, including BBO [1], LBO [2][3][4], CLBO [5][6][7][8], CBO [9][10]. Nonlinear optical crystal LBO is much attractive in sum-frequency mixing of 1064 nm and 532 nm due to its small walk-off, high dam-age threshold, and large acceptability [11].…”

Section: Introductionmentioning

confidence: 99%

Short pulse duration of a 355-nm laser by extracavity sum-frequency mixing with a LiB₃O₅ (LBO) crystal

Wang

Liu

et al. 2008

Laser Phys. Lett.

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A diode-pumped all-solid-state ultraviolet (UV) laser at 355 nm with pulse duration as short as 4.5 ns and peak power of 5.96 kW is proposed. The output UV light at 355 nm is obtained by extracavity sum-frequency mixing and has a power of 536 mW at the incident pump power of 15.65 W, corresponding to an optical-to-optical efficiency of 3.4%, the energy distribution of the UV light is near TEM00 and the power stability in an hour is better than ± 5.2%. Taking into account the thermal effects of the gain medium Nd:YVO4 crystal at high incident pump power, a plane-to-plane cavity is chosen to take advantage of the maximum pump power and obtain the compact configuration.

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“…To achieve the frequency up-conversion, cascaded sum frequency conversion technique is employed. 5 Recently CLBO has been demonstrated to produce about 28 W of UV laser output at 266 nm wavelength. 6 One of the major problems limiting the use of NLO crystals at very high intensities is the NLO phenomenon called multiphoton absorption.…”

Section: Introductionmentioning

confidence: 99%

Multiphoton absorption in CsLiB6O10 with femtosecond infrared laser pulses

Reddy

Naik

Elizabeth

et al. 2008

Journal of Applied Physics

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Articles you may be interested inTime-resolved imaging of laser-induced refractive index changes in transparent media Rev. Sci. Instrum. 82, 033703 (2011); 10.1063/1.3527937 Microstructural imaging of high repetition rate ultrafast laser written LiTaO 3 waveguides Appl. Phys. Lett.A new method to obtain a 212 nm laser source for Lyman-α light with CLBO crystals AIP Conf.Nonlinear absorption and refraction characteristics of cesium lithium borate ͑CsLiB 6 O 10 ͒ crystal have been studied using Z-scan technique. Ti:sapphire laser with 110 fs pulse width operating at 800 nm wavelength and pulse repetition rate of 1 kHz is used as the source of photons. Intensity of the laser pulse is varied from 0.541 to 1.283 T W / cm 2 to estimate the intensity dependence of multiphoton absorption coefficients. Using the theory of multiphoton absorption proposed by Sutherland ͓Handbook of Nonlinear Optics, in 2nd ed., edited by D. G. McLean and S. Kirkpatrick, Dekker, New York ͑2003͔͒, found that open aperture Z-scan data fit well for the five-photon absorption ͑5PA͒ process. 5PA coefficients are obtained by fitting the expressions into the open aperture experimental data for various peak intensities ͑I 00 ͒. The nonlinear refractive index n 2 estimated from closed aperture Z-scan experiment is 1.075ϫ 10 −4 cm 2 / T W at an input peak intensity of 0.723 T W / cm 2 . The above experiment when repeated with a 532 nm, 6 ns pulsed laser led to an irreversible damage of the sample resulting in an asymmetric open aperture Z-scan profile. This indicates that it is not possible to observe multiphoton absorption in this regime of pulse width using 532 nm laser.

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Generation of all-solid-state, high-power continuous-wave 213-nm light based on sum-frequency mixing in CsLiB_6O_10

Cited by 23 publications

References 9 publications

Electro-optical Q-switch low-repetition-rate narrowpulse-width UV pulse laser at 355 nm generated by pulsed-diode-pumped Nd:YAG

Electro-optical Q-switch low-repetition-rate narrowpulse-width UV pulse laser at 355 nm generated by pulsed-diode-pumped Nd:YAG

Short pulse duration of a 355-nm laser by extracavity sum-frequency mixing with a LiB₃O₅ (LBO) crystal

Multiphoton absorption in CsLiB6O10 with femtosecond infrared laser pulses

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Generation of all-solid-state, high-power continuous-wave 213-nm light based on sum-frequency mixing in CsLiB_6O_10

Cited by 23 publications

References 9 publications

Electro-optical Q-switch low-repetition-rate narrowpulse-width UV pulse laser at 355 nm generated by pulsed-diode-pumped Nd:YAG

Electro-optical Q-switch low-repetition-rate narrowpulse-width UV pulse laser at 355 nm generated by pulsed-diode-pumped Nd:YAG

Short pulse duration of a 355-nm laser by extracavity sum-frequency mixing with a LiB3O5 (LBO) crystal

Multiphoton absorption in CsLiB6O10 with femtosecond infrared laser pulses

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Short pulse duration of a 355-nm laser by extracavity sum-frequency mixing with a LiB₃O₅ (LBO) crystal