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9ns Q Switch Laser Crystals for diode pumped Nd:YAG lasers

Categories Laser Crystals
Brand Name: STAR OPTIC
Model Number: Cr: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: Passive Q-Switch Crystal Cr:YAG
Cr Dopant: 0.5~3%
Applications: passive Q-switching materials for passively Q-Switching diode pumped or lamped Nd or Yb doped lasers
Wavelength: 800-1200nm
Crystal Structure: Cubic
Mohs Hardness: 8.5
Damage threshold: >750MW/cm2@1064nm 10ns 10HZ
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9ns Q Switch Laser Crystals for diode pumped Nd:YAG lasers

Passive Q-Switch Crystal Cr:YAG

Overview:

Cr4+:Y3Al5O12 crystal (Cr4+:YAG) is one of the most promising passive Q-switching materials for passively Q-Switching diode pumped or lamped Nd or Yb doped lasers at wavelength from 0.8 to 1.2um. Because of Cr4+:YAG's chemical stability, durability, UV resistance, good thermal conductivity, high damage threshold (> 500 MW/cm ) and easy operation, Cr4+:YAG will replace some traditional switching materials, such as LiF and organic Dye. The preliminary experiments of Cr:YAG showed that the pulse width of passively Q-switched lasers could be as short as 9ns for diode pumped Nd:YAG lasers and repetition rate as high as 10kHz for diode pumped Nd:YVO4 lasers.


General Specifications Of Cr4+:YAG:

MaterialCr4+:YAG
Orientation<111> or <110> or <100>
Initial absorption coefficient0.5-7/cm@1064nm
Diameter toleranceDiameter:+0/-0.02mm, W×H:+/-0.1mm
Length tolerance+/-0.5mm
Initial transmittance5%-95%@1064nm
Dimension

Diameter:3-12mm, H×W:2×2-30×30mm

(upon customer’s request)

Barrel finishGround finish 400#Grit
Clear aperture>90% central area
Parallelism<10 arc seconds
Perpendicularity<5 arc minutes
Flatness<λ/8@632.8nm
Scratch/Dig10/5@MIL-0-13830A
Anti-Reflection coatingR<0.15%@1064nm per surface
Damage threshold>750MW/cm2@1064nm 10ns 10HZ

Physical and Optical Properties of Cr4+:YAG:

Crystal StructureCubic
Dopant0.5~3% Cr
Wavelength950nm-1100nm
Melting Point1970℃
Curie Point936℃
Density4.56g/cm3
Mohs Hardness8.5
Recovery Time8.5us
Thermal Conductivity12.13W/m/K
Loss Coefficient0.003cm-1
Refractive Index1.82 @1064nm
Base State Absorption Cross Section4.3x10-18/cm2
Emission State Absorption Cross Section8.2x10-19/cm2
Fluorescence Lifetime3.4us
Optical Damage Threshold>500MW/cm2


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