High-energy, high-efficiency second-harmonic generation of 1064-nm radiation in KTP

Brown, Andrew J. W.; Bowers, Mark S.; Kangas, K. W.; Fisher, C. H.

doi:10.1364/ol.17.000109

Cited by 30 publications

(7 citation statements)

References 12 publications

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“…The isomorphous RbTiOPO 4 (RTP) and KTiOPO 4 (KTP) single crystals are important non-linear optical (NLO) materials for frequency doubling the 1.06 µm neodymium laser emission. This has been shown in bulk crystals [1], waveguides [2] and in quasiphasematched periodically poled waveguides [3,4]. These crystals have also found applications as optical parametric devices [5].…”

Section: Introductionmentioning

confidence: 70%

Optical absorption of in and

Rico

Zaldo

Díaz

1998

J. Phys.: Condens. Matter

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The optical absorption of in (RTP) and (KTP) single crystals has been characterized at 5 K and 300 K temperatures. The room temperature oscillator strengths of obtained in both lattices are similar although in KTP the uncertainty is higher due to the lower concentration of Er in the samples available. The results obtained in RTP have been analysed by using the Judd-Ofelt theory. The effective Judd-Ofelt parameters obtained for in RTP are , , . The photoluminescence transition radiative rates, branching ratios and radiative lifetimes of in these crystals have been calculated for all de-excitations from the multiplet. The erbium emission has been characterized. The low temperature optical absorption and photoluminescence suggest the coexistence of two erbium centres in both lattices, which we have tentatively ascribed to the occupancy with different population densities of the two titanium lattice sites.

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Section: Introductionmentioning

confidence: 70%

Optical absorption of in and

Rico

Zaldo

Díaz

1998

J. Phys.: Condens. Matter

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“…Different nonlinear crystals such as KTP, KD * P, LBO, and BBO have been used for SHG processes [27][28][29]. A KTP with dimensions of 10*10*10 mm 3 was used because this crystal has many advantages compared to other cases, such as large acceptance angle, broad temperature widths and larger nonlinear coefficient [30,31].…”

Section: Second Harmonic Generationmentioning

confidence: 99%

A compact diode-pumped pulsed Nd:YAG slab laser based on a master oscillator power amplifier configuration

et al. 2016

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In this paper, the design and construction of a pulsed Nd:YAG laser is described. The structure of this laser is based on a master oscillator power amplifier system. A master oscillator is an electro-optical Q-switched Nd:YAG rod laser. Face-pumping is used for the excitation of the slab structure, and a double-pass method is designed for the amplification stages. Two Nd:YAG zigzag slabs are utilized as power amplification stages in this laser. The laser diodes are stacked in a compact configuration and are used for rod and slabs pumping. The total pump energy in the amplifier stages is 3200 mJ at 808 nm. The output pulse energy achieved at 1064 nm is about 850 mJ of 10 ns pulse duration corresponding to 26.5% optical-to-optical conversion efficiency. Moreover, this laser can generate pulse energies around 430 mJ at 532 nm. The dependence of the output energy of MOPA and second harmonic generation operations on different pulse repetition rates (PRRs) from 1 to 100 Hz has been investigated. Experimental results show that the maximum fluctuations of the output energies are about 2.5 and 4% for 1064 and 532 nm, respectively.

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“…KTP crystal due to its large nonlinear coefficients, broad spectral bandwidth, high damage threshold, and large acceptance angle [1,2,3], is widely used for the second harmonic generation, sum and difference frequency generation, optical parametric amplification, etc [2,4,5,6,7,8,9,10,11,12].…”

Section: Introductionmentioning

confidence: 99%

Study of a bi-axial (KTP) crystal using Double Stokes Mueller Polarimetry

Shaji¹,

B²,

Sharan³

2021

Preprint

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We report the significance of the double Stokes Mueller polarimetry (DSMP) technique, to characterize a large size (3 × 3 × 5mm) KTP (Potassium titanyl phosphate) crystal. The crystal undergoes second harmonic generation with type II phase matching. The study of standard KTP crystal using the DSMP technique helps to validate the efficiency of this technique. We were able to extract the crystal's double Mueller matrix, relative contribution of the susceptibility tensor components, the phase difference between the susceptibility tensor components, etc. We could determine the crystal axes orientation using this optical technique, which was not possible through a single crystal X-Ray diffraction technique for such a large size crystal for which both optic axes and crystallographic axes are the same. Axes direction determined from polarization microscope measurements and Laue diffraction measurements on KTP crystal is compared with those obtained from DSMP measurements.

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High-energy, high-efficiency second-harmonic generation of 1064-nm radiation in KTP

Cited by 30 publications

References 12 publications

Optical absorption of in and

Optical absorption of in and

A compact diode-pumped pulsed Nd:YAG slab laser based on a master oscillator power amplifier configuration

Study of a bi-axial (KTP) crystal using Double Stokes Mueller Polarimetry

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