All-solid-state, high-power, deep-UV laser system based on cascaded sum-frequency mixing in CsLiB_6O_10 crystals

Sakuma, Jun; Deki, K.; Finch, A.; Ohsako, Y.; Yokota, Toshio

doi:10.1364/ao.39.005505

Cited by 42 publications

(12 citation statements)

References 6 publications

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“…Sakuma et al have developed a solid-state laser system that produces 1.53 W of average power at 196.3 nm with a 5 kHz pulse repetition rate [204,205]. A schematic diagram of the DUV source is shown in Figure 3.41.…”

Section: Lbo Family J173mentioning

confidence: 99%

Borate Nonlinear Optical Crystals for Frequency Conversion

2012

Nonlinear Optical Borate Crystals

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After the discovery of BBO and LBO during 1979-1987, many research groups are involved in this field because the borate NLO crystals have several outstanding advantages, such as the relative larger second harmonic generation (SHG) coefficients, wide transparent spectral range on the UV side, high damage threshold, and so on. As a result, more than 20 borate NLO crystals have been discovered till now. In this chapter, we will introduce several typical borate crystals, which have indicated important applications, particularly in laser industry. These borate crystals include (1) b-BaB 2 O 4 (BBO), the basic structural unit of which is (B 3 O 6 ) 3À group. (2) LiB 3 O 5 (LBO) family, including CsB 3 O 5 (CBO) and CsLiB 6 O 10 (CLBO), the basic structural unit of which is (

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Section: Lbo Family J173mentioning

confidence: 99%

Borate Nonlinear Optical Crystals for Frequency Conversion

2012

Nonlinear Optical Borate Crystals

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“…The usefulness of sum-frequency generation to produce tunable UV radiation from nanosecond solid-state laser sources was demonstrated by several authors for alexandrite lasers [5][6][7], Ti:sapphire lasers [8][9][10][11][12][13][14], Cr-doped colquiriite lasers [15], or OPOs [16][17][18][19][20] in the past. However, none of the reported configurations would be able to fulfill the requirements of a laser for a compact, versatile ion mobility spectrometer.…”

Section: Introductionmentioning

confidence: 99%

Compact, passively Q-switched, all-solid-state master oscillator-power amplifier-optical parametric oscillator (MOPA-OPO) system pumped by a fiber-coupled diode laser generating high-brightness, tunable, ultraviolet radiation

Peuser¹,

Platz²,

Fix³

et al. 2009

Appl. Opt.

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We report on a compact, tunable ultraviolet laser system that consists of an optical parametric oscillator (OPO) and a longitudinally diode-pumped Nd:YAG master oscillator-power amplifier (MOPA). The pump energy for the whole laser system is supplied via a single delivery fiber. Nanosecond pulses are produced by an oscillator that is passively Q-switched by a Cr(4+):YAG crystal. The OPO is pumped by the second harmonic of the Nd:YAG MOPA. Continuously tunable radiation is generated by an intracavity sum-frequency mixing process within the OPO in the range of 245-260 nm with high beam quality. Maximum pulse energies of 1.2 mJ were achieved, which correspond to an optical efficiency of 3.75%, relating to the pulse energy of the MOPA at 1064 nm.

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“…In the past decades, variety of NLO material have been discovered for different applications, among them borate crystals, including β-BaB 2 O 4 (BBO) [6], CsLiB6O10 (CLBO) [7], LiB3O5 (LBO) [8], Sr2Be2B2O7 (SBBO) [9], are the most promising crystals to generate deep ultraviolet light and have been intensively studied. Normally, three-stage nonlinear generation procedures are the best option to generate near 200nm deep UV laser source, using well developed 1µm laser (Nd:YAG, Nd:YLF, Ti:Sapphire and Nd:glass) as pump source, BBO/CLBO as second-, forth-and Fifth-(sum) harmonic generation crystals in type-I interactions [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

High-efficency stable 213-nm generation for LASIK application

2005

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213nm Solid-state laser technology provides an alternative method to replace toxic excimer laser in LASIK system. In this paper, we report a compact fifth harmonic generation system to generate high pulse energy 213nm laser from Qswitched Nd:YAG laser for LASIK application based on three stages harmonic generation procedures. A novel crystal housing was specifically designed to hold the three crystals with each crystal has independent, precise angular adjustment structure and automatic tuning control. The crystal temperature is well maintained at ~130°C to improve harmonic generation stability and crystal operation lifetime. An output pulse energy 35mJ is obtained at 213nm, corresponding to total conversion efficiency ~10% from 1064nm pump laser. In system verification tests, the 213nm output power drops less than 5% after 5 millions pulse shots and no significant damage appears in the crystals.

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All-solid-state, high-power, deep-UV laser system based on cascaded sum-frequency mixing in CsLiB_6O_10 crystals

Cited by 42 publications

References 6 publications

Borate Nonlinear Optical Crystals for Frequency Conversion

Borate Nonlinear Optical Crystals for Frequency Conversion

Compact, passively Q-switched, all-solid-state master oscillator-power amplifier-optical parametric oscillator (MOPA-OPO) system pumped by a fiber-coupled diode laser generating high-brightness, tunable, ultraviolet radiation

High-efficency stable 213-nm generation for LASIK application

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