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807.5nm Laser Crystals Grooved Nd Yag Laser Rods With Good Beam Quality

Categories Laser Crystals
Brand Name: STAR OPTIC
Model Number: Grooved Nd:YAG
Certification: RoHS, ISO9001
Place of Origin: Wuhan, China
MOQ: 1pc
Price: Negotiable
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 50000pcs/Month
Delivery Time: Negotiable
Packaging Details: Safe and dust-free packing
Product Name: Laser Crystal Grooved Nd:YAG
Crystal Structure: Cubic
Mohs Hardness: 8.5
Lasing Wavelengths: 1064nm
Pump Wavelength: 807.5 nm
Polarized Emission: Unpolarized
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807.5nm Laser Crystals Grooved Nd Yag Laser Rods With Good Beam Quality

Laser Crystal Grooved Nd:YAG

Overview:

The grooved Nd:YAG laser rods have the improvements on the beam quality, thermal effect reduction and the efficiency when compared with the common Nd:YAG laser rods.


General Specifications Of Grooved Nd:YAG:

Nd Dopant Level0.5-1.1 atm%
Orientation<111> crystalline direction (±0.5deg)
Dimension TolerancesDiameter: ±0.05mm
Length: ±0.5mm
Surface Quality10/5 Scratch and Dig
Clear Aperture>90%
Surface Flatness<λ/10@633nm
Wavefront Distortion<λ/8@633nm
Parallelism<10 arc seconds
Perpendicularity<5 arc minutes
Chamfer<0.1mmx45°
AR CoatingReflectivity R<0.25%@1064 nm per surface
Damage threshold over 750MW/cm2@1064nm, 10 ns and 10 Hz
Other coating is per your request
Extinction RatioRods with diameter from 3 mm to 6.35 mm and with length to 100 mm: >30dB
Rods with diameter from 7 mm to 10 mm and with length to 100 mm: >28dB

Physical Properties of Grooved Nd:YAG:

Chemical FormulaNd:Y3Al5O12
Crystal StructureCubic
Lattice Constants12.01
Concentration~1.2 x 1020 cm-3
Melting Point1970℃
Density4.56 g/cm3
Mohs Hardness8.5
Refractive Index1.82
Thermal Conductivity14 W/m /K @20℃, 10.5 W /m /K @100℃
Thermal Expansion Coefficient7.8 x 10-6/K [111], 0 - 250℃

Optical Properties of Grooved Nd:YAG:

Lasing Wavelengths1064nm
Photon Energy1.86x10-19J@1064nm
Stimulated Emission Cross-Section2.8x10-19cm2
Relaxation Time of Terminal Lasing Level30ns
Radiative Lifetime550us
Spontaneous Fluorescence230us
Loss Coefficient0.003 cm-1@1064nm
Pump Wavelength807.5 nm
Absorption band at pump wavelength1nm
Linewidth0.6nm
Polarized EmissionUnpolarized
Thermal BirefringenceHigh


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