High-energy single longitudinal mode 1 ns all-solid-state 266 nm lasers

Liu, Qiang; Lei, Ming; Gong, Munan; Huang, Lei; He, Feng; Fu, Xing; Yan, Xing Peng

doi:10.1007/s00340-007-2809-1

Cited by 8 publications

(4 citation statements)

References 8 publications

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“…Extra-cavity fourth harmonic generation (FHG) is one of the common approaches to generating 266 nm DUV radiation. In 2007, Liu Qiang obtained an ultraviolet laser of 266 nm with high-power green lasers, but the M 2 < 5 [6]. In 2009, he reported a 14.8 W UV laser at 266 nm with condensing lens configuration to increase the power density of the 532 nm laser, yet the beam profile was not mentioned [7].…”

Section: Introductionmentioning

confidence: 99%

Improved beam profile of a 266 nm deep ultraviolet laser employing a multi-mirror-reflected cavity

et al. 2016

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A 266 nm deep ultraviolet (DUV) laser with a good Gaussian profile is reported employing a multi-mirror-reflected cavity. A type-I LiB3O5 (LBO) crystal is used to double the fundamental-light (1064 nm) wavelength generated by an actively Q-switched Nd:YVO4 laser with an intra-cavity configuration. A fourth harmonic generation (FHG) wavelength is obtained by a type-I β-BaB2O4 (BBO) crystal. The output power as high as 440 mW at 266 nm is generated under an incident power of 2.26 W at 532 nm, corresponding to the conversion efficiency of 532 nm–266 nm up to 19.5% with a repetition rate of 15 kHz and the pulse duration of 266 nm is 10.7 ns.

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Section: Introductionmentioning

confidence: 99%

Improved beam profile of a 266 nm deep ultraviolet laser employing a multi-mirror-reflected cavity

et al. 2016

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“…To date, one of the common approaches to supplying UV lasers is to utilize the extra-cavity harmonic generation configuration using nonlinear optical conversion [4][5][6][7][8][9][10]. Unfortunately, in order to acquire optimal efficiency and output power, it is necessary to increase the power intensity 5 Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

A compact efficient deep ultraviolet laser at 266 nm

et al. 2013

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We present a highly efficient and cost-effective watt-level deep-ultraviolet laser operating at 266 nm. Type-I phase-matching LBO crystals and type-I phase-matching BBO crystals were used for frequency doubling and fourth-harmonic generation, respectively. The highest 1.82 W average power of the 266 nm laser was obtained from nonlinear frequency conversion at a repetition rate of 30 kHz and a pump power of 18.8 W. The conversion efficiency from the diode to the deep-ultraviolet laser scales up to 10.7%. This is, to our knowledge, the highest efficiency ever reported generated from a laser diode single-end-pumped acousto-optic Q-switched system.

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“…By the frequency conversion technique, this system has been optimized to deliver 45 kHz, 300 ps UV laser with an energy per pulse of close to 1 µJ. Since 2007, Liu et al [12] have reported their works on amplifying the short pulse laser. In their studies, 1064 nm, 100 µJ, ∼1 ns seeding pulse was amplified up to 400 mJ with the divergence angle of 1 mrad.…”

mentioning

confidence: 99%

A 526 mJ Subnanosecond Pulsed Hybrid-Pumped Nd:YAG Laser

Shi¹,

Xin²,

Liu³

et al. 2017

Chinese Phys. Lett.

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A hybrid-pumped Nd:YAG pulse laser with a double-pass two-rod configuration is presented. The focal length of offset lens is particularly studied to compensate for the thermal lens effect and depolarization. For input pulse energy of 141 μJ with pulse duration of 754 ps, the pulse laser system delivers 526 mJ pulse energy and 728 ps pulse width output at 10 Hz with pulse profile shape preservation. The energy stability of the laser pulse is less than 3%, and the beam quality factor is less than 2.26.

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High-energy single longitudinal mode 1 ns all-solid-state 266 nm lasers

Cited by 8 publications

References 8 publications

Improved beam profile of a 266 nm deep ultraviolet laser employing a multi-mirror-reflected cavity

Improved beam profile of a 266 nm deep ultraviolet laser employing a multi-mirror-reflected cavity

A compact efficient deep ultraviolet laser at 266 nm

A 526 mJ Subnanosecond Pulsed Hybrid-Pumped Nd:YAG Laser

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