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Bauteile für die zweite Harmonische der Nd:YAG und Nd:YVO4 Laser
The harmonics of Nd:YAG and Nd:YVO4 lasers are widely used for materials processing as well as for measurement applications. Moreover, the second harmonic of the Nd:YAG laser is often used as pump source for Ti:Sapphire lasers. On these pages we introduce optics for 532 nm: dual wavelength mirrors, separators, thin film polarizers and non-polarizing beamsplitters, but also cavity optics for compact diode pumped lasers of different configurations. All designs are calculated according to customer specification.
![Dual wavelength cavity mirror Dual wavelength cavity mirror](/files/capabilities/laser-types/yttrium-aluminium-garnet/nd-yag-second-harmonic1.jpg)
![Separators for the second harmonic from the ground wavelength Separators for the second harmonic from the ground wavelength](/files/capabilities/laser-types/yttrium-aluminium-garnet/nd-yag-second-harmonic2.jpg)
(a): HR(0°, 1064 nm) > 99.9 % + R(0°, 532 + 808nm) < 3 %
(b): HRs+p(45°, 532 nm) > 99.9 % + Rs+p(45°, 808 + 1064 nm) < 2 %
![Thin film polarizer Thin film polarizer](/files/capabilities/laser-types/yttrium-aluminium-garnet/nd-yag-second-harmonic3.jpg)
![Separator for the third harmonic and the second harmonic Separator for the third harmonic and the second harmonic](/files/capabilities/laser-types/yttrium-aluminium-garnet/nd-yag-second-harmonic4.jpg)
The transmission of thin film polarizers for p-polarized light can be measured with high accuracy by a modified cavity ring down setup.
![HR mirror for 1064nm HR mirror for 1064nm](/files/capabilities/laser-types/yttrium-aluminium-garnet/nd-yag-second-harmonic5.jpg)
For common specifications of separators for the harmonics in the UV spectral range please see the table on our site higher-harmonics. Do not hesitate to contact us for separators or mirrors with other angles of incidence.
Coatings on Nonlinear Optical Crystals
![HR mirror for 1064nm HR mirror for 1064nm](/files/capabilities/laser-types/yttrium-aluminium-garnet/nd-yag-second-harmonic6.jpg)
Nonlinear optical crystals are the key elements for frequency conversion. LAYERTEC offers a variety of coatings on crystals like KTP and lithium niobate.