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Resonator Mirrors for weak Laser Lines

Resonator mirrors
Neodymium-doped crystals exhibit laser transitions at different wavelengths. However, these are of different strengths. If laser radiation is to be emitted corresponding to the wavelength of a weaker laser transition, the laser lines of the stronger ones must be suppressed.
LAYERTEC offers a variety of laser mirrors where the 1064 nm laser line as the strongest laser transition is suppressed to achieve efficient lasing at other wavelengths. In dependence of the laser setup all coatings are designed and manufactured according customer specifications.
Nd:YAG | Nd:YVO4 | ||
---|---|---|---|
Laser Line | Second Harmonic | Laser Line | Second harmonic |
946 nm | 473 nm | 915 nm | 457 nm |
1064 nm | 532 nm | 1064 nm | 532 nm |
1123 nm | 561 nm | 1340 nm | 670 nm |
1319 nm | 659 nm |

Fig. Reflectance spectrum of a dual wavelength mirror for a weak laser line and its second harmonic, with high transmittance for the pump wavelength and the strongest laser line