Cr:YAG Crystal
Cr4+:YAG Crystal is an excellent crystal for passively Q-switching diode pumped or lamp-pumped Nd:YAG, Nd:YLF, Nd:YVO4 or other Nd and Yb doped lasers at wavelength from 0.8 to 1.2 µm. Because of its chemically stable, durable, UV resistant, good thermal conductivity and high damage threshold (> 500 MW/cm2) and being easy to be operated, it will replace traditional materials, such as LiF, organic Dye and color centers.
AGOPTICS provides Cr4+:YAG with Cr4+ doping level from 0.5mol% to 3mol%. The size could be from 2×2mm2 to 14×14mm2 with length from 0.1mm to 12mm available. We can control the initial
transmission from 10% to 92% according to customers’requirements
The preliminary experiments of AGOPTICS’S Cr4+:YAG showed that the pulse width of passively Q-switched lasers could be as short as 5ns for diode pumped Nd:YAG lasers and repetition as high as 10kHz for diode pumped Nd:YVO4 lasers. Furthermore, an efficient green output @ 532nm, and UV output @ 355nm and 266nm were generated, after a subsequent intracavity SHG in KTP or LBO, THG and 4HG in LBO and BBO for diode pumped and passive Q-switched Nd:YAG and Nd:YVO4 lasers.
Cr4+:YAG is also a laser crystal with tunable output from 1.35 µmto 1.55 µm. It can generate ultrashort pulse laser (to fs pulsed) when pumped by Nd:YAG laser at 1.064 µm.
Specifications:
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Angle tolerance:
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Δθ< ± 0.5°; Δφ< ±0.5°
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Dimensional Tolerance:
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(W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/-0.1mm)
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Flatness:
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<λ/8 at 633nm
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Surface Quality:
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10/5 S/D
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Parallelism:
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< 20 arc seconds
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Perpendicularity:
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< 5 arc minutes
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Wavefront Distortion:
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<λ/8 at 632.8nm
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Clear Aperture:
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Central 95%
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Chamfer:
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0.15x45°
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Damage threshold:
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>500M/cm^2
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Hardness:
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8.5
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Dopant Level
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0.5mol%~3mol%
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Refractive Index:
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1.82@1064nm
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Coating:
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Customized
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