Product Features:
Er:Yag, Nd:YAG, Nd:YVO4,Cr:YAG Q-switch,
Laser Crystal
BBO
a-BBO
Business Terms:
Port: China
Minimum Order Quantity: 1 Piece/Pieces
Supply Ability: 500 Piece/Pieces per Month
Payment Terms: L/C,D/P,T/T
Contact Supplier
Er:Yag, Nd:YAG, Nd:YVO4,Cr:YAG Q-switch,
Laser Crystal
BBO
a-BBO
Port: China
Minimum Order Quantity: 1 Piece/Pieces
Supply Ability: 500 Piece/Pieces per Month
Payment Terms: L/C,D/P,T/T
Contact Supplier
Packaging Detail: Box
Delivery Detail: 30 Dyas
ER:YAG
Er:YAG is an excellent laser crystal which lasers at 2.94μm.It has wide applications in medical laser systems, and others.
Advantages of Er:YAG Crystals
Material and Specifications
| Dopant concentration | Er: ~50 at% |
| Orientation | [111] within 5° |
| Wavefront Distortion | ≤0.125λ/inch( at1064nm) |
| Extinction Ratio | ≥25 dB |
| Rod Sizes | Diameter:36mm, Length:50120 mm Upon request of customer |
| Dimensional Tolerances | Diameter:+0.000"/-0.002", Length: ± 0.02" |
| Barrel Finish | Ground Finish: 400# Grit |
| Parallelism | ≤10" |
| Perpendicularity | ≤5 |
| Flatness | λ/10 |
| Surface Quality | 10-5(MIL-O-13830A) |
| Chamfer | 0.006"±0.002" |
| AR Coating Reflectivity | ≤ 0.25% (at 2940nm) |
| Laser Transition | 4I11/2to4I13/2 |
| Laser Wavelength | 2940nm |
| Photon Energy | 6.75×10-20J( at 2940nm) |
| Emission Cross Section | 3×10-20cm2 |
| Index of Refraction | 1.79 at 2940nm |
| Pump Bands | 600~800 nm |
| Crystal Structure | Cubic |
| Lattice Parameters | 12.01 Å |
| Melting Point | 1970 |
| Moh Hardness | 8.5 |
| Density | 4.56±0.04g/cm3 |
| Specific Heat (0-20) | 0.59J/g.cm3 |
| Modulus of Elasticity | 310GPa |
| Young's Modulus | 3.17×104Kg/mm2 |
| Poisson Ratio | 0.3(est.) |
| Tensile Strength | 0.13~0.26GPa |
| Thermal Expansion Coefficient | [100]Direction:8.2×10-6/(0~250) |
| [110]Direction:7.7×10-6/(0~250) | |
| [111]Direction:7.8×10-6/(0~250) | |
| Thermal Conductivity | 14W/m/K(at 20) |
| 10.5W/m/K(at 100) | |
| Thermal Optical Coefficient (dn/dT) | 7.3×10-6/ |
| Thermal Shock Resistance | 790W/m |
| Solubility | Water: Insoluble; Common Acids: Slightly |
Model No.: AL-850
Features: Auto Lensmeter: AL-850
It can measure single vision lenses, bifocal(trifocal) lenses, progressive lenses, contact lenses...
Model No.: SD-1050II
Features: 1.Professional and stable pipeline inspection system
2.Easy and convenient controlling and handling.
3.User-friendly.
Model No.: 03PM001
Features: Polarizer Holder
1.2-dimemsion tilt adjustment and 1-dimension rotary adjustment.
2.Mounting 25.4mm polarizer or other size.
Model No.: P-001
Features: znse CO2 laser window
Material: Zinc Selenide
Tolerance:+0.0/-0.1mm
Clear Aperture:>90%
low price
Model No.: KSR-101
Features: Streak Retinoscope.
Continuous 360 degree rotation.
Smooth Movement.
Packed in Case or zipper pouch.
Best Quality
Model No.: ACP-1500C
Features: Auto Chart Projector ACP-1500C
Professional Manufacturer
CE & ISO certification
30 different pattern
One chart per 0.01-0.03
Model No.: HLM-100
Features: Hand Lensmeter: HLM-100
1) CE& ISO.
2) Conveniently to operate and carry.
Model No.: SD-1000III
Features: 1. Professional digital inspection periscope.
2. User-friendly controlling system.
3. Adequate maintainance services.
Model No.: cr6-45nm
Features: used full set canon cr6-45nm digital set with computer.
table not included.
Model No.: TL-6000
Features: lensmeter colored TL-6000
Professional Manufacturer
1.With CE
2.Automatic focusing
3.PD & Thermal Printe
Model No.: PD-28
Features: PD meter:PD-28
1) CE& ISO.
2) Accurate .
3) New design.
Model No.: AL-200
Features: 1, Large LCD screen clearly shows status and results.
2, PD,UV function.
3, Quick measurement and accurate results.