Nd:YAG
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Nd:YAG

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Nd: YAG (neodymium-doped yttrium aluminium garnet; Nd: Y3Al5O12) is a crystal that is used as a lasing medium for solid-state lasers. The dopant, triply ionized neodymium, typically replaces yttrium in the crystal structure of the yttrium aluminium garnet (YAG), since they are of similar size. Generally the crystalline host is doped with around 1% neodymium by atomic percent.
Features:
• High Gain, Low Threshold, High Efficiency;
• Low Loss at 1.06 mm, High Optical Quality;
• Good Mechanical and Thermal Properties;
• Due to the cubic symmetry and high quality, Nd: YAG is easy to operate with TEM00 Mode.
Applications:
• Nd: YAG can produce blue laser with the frequency-doubling of 946nm;
• Nd: YAG can be operated in a very high power laser up to kw level at 1064nm;
• Nd: YAG can be Q-switched with Cr4+YAG directly;
• Nd: YAG can be used for high power green laser for SHG@1064nm.
Optical Properties:
Stimulated Emission Cross Section
2.8x10-19 cm2
Relaxation Time of Terminal Lasing Level
30 ns
Radiative Lifetime
550 us
Spontaneous Fluorescence Lifetime
230 us
Linewidth
0.6 nm
Pump Wavelength
807.5nm
Absorption Bandwidth
1nm
Polarized Emission
Unpolarized
Thermal Birefringence
High
Loss Coefficient
0.003 cm-1 @ 1064nm
Specifications:
Doping (atm%)
0.2%~ 2.5%
Orientation
<111> crystalline direction
Wavefront Distortion
λ/8 per inch @ 633 nm
Extinction Ratio
>28dB
Dimension Tolerances
Dia.: +/-0.025 mm , Length: +/-0.5 mm
Surface Quality
10/5 Scratch / Digper MIL-O-1380A
Parallelism
< 10 arc seconds
Perpendicularity
< 5 arc minutes
Clear Aperture
>90%
Flatness
<λ/10 @ 633 nm</div>
Chamfer
<0.1 mm @ 45deg</div>
Barrel Finish
50-80 micro-inch (RMS) ,
Anti-Reflection Coating
R < 0.20% @ 1064 nm per surface. Damage threshold over 1GW/cm2@ 1064nm, 10 ns and 10 HZ
High-Reflection Coating
Standard HR coating with R>99.8% @ 1064nm and R<5% @ 808nm</div>

Localisation : 118 Yangqiao Road West,Fuzhou,350002,P.R.China, china fujian ,
Personne à contacter : amiee ye,

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Nd:YAG

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