Medical Laser Crystals / Er YAG Crystals With Superior Thermal Optical Properties

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK- Er:YAG Crystal
Minimum Order Quantity: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Detail Information
Material: Crystal,Solid Laser Material Technique: Polished,Cutting
Use: LASER SYSTEM Regional Feature: Global
Size: Customzied
High Light:

laser material


titanium doped sapphire

Product Description


Er YAG laser Crystal—50% Erbium doped in YAG which can stimulate 2940nm laser used in medical and dentistry

Er YAG, Erbium doped Yttrium Aluminum Garnet (Er:Y3Al5O12 or Er:YAG) combine various output wavelength with the superior thermal and optical properties of Er YAG. It is an excellent laser crystal which lasers at 2.94μm. This wavelength is the most readily absorbed into water and hydroxylapatite of all existing wavelengths and is considered a highly surface cutting laser. It is a well known material for medical applications.

The emission wavelength of Er YAG with doping concentration of 50% is 2940nm, which is at the position of water absorption peak and can be strongly absorbed by water molecules. Therefore, it is widely used in the field of plastic surgery and dentistry. At present, the projects we have participated in include laser blood collection instrument, which adopts the structure of both sides of Er:yag rods coated and xenon lamp end pumped.the Er YAG laser wavelength is an excellent choice for improvement of a variety of skin conditions and features of aging, including dyschromia, actinic photodamage, solar elastosis, acne and traumatic scarring, fine lines and mild to moderate rhytidosis, coarse skin texture, and skin laxity.


Applications & General Information Of Er Yag Laser Crystal
Choosing the right laser product for either medical application or optical communication is very important. We offer Er Yag Crystal with many striking features to suit all needs. It is an impressive laser material suitable for eye-safe emissions. The specialized feature of this product is that it helps people to achieve highly efficient laser operation. It is well-known for its superior quality and outstanding features. It includes the finest optical quality, minimal scattering loss, high damage, and output threshold.

Major Applications ​
With this laser product, people can enjoy an increased level of energy level structure. With better doping concentration, it is used in two applications. It includes:

  • Medical applications
  • Optical communication

This product has made of proprietary technology that lets it overcome the worst efficiency associated with other laser materials. We offer the laser crystals in different sizes, so you can pick the right one carefully. We ensure that every product can meet the precise specifications and deliver better performance.


Material and Specifications

Orientation [100] or [100] <± 0.5.
Parallelism 10〞
Surface Quality 10-5
Wavefront Distortion <­λ/8@632 nm
Surface Flatness <λ/10@632.8nm
Clear Aperture >90%
Chamfer 0.1mm@45°
Thickness/Diameter Tolerance ±0.05 mm
Maximum Dimensions Diameter:2mm-50mm, Length:5mm-180mm
Coatings < 0.25% @ 2940 nm


Crystal Structure cubic – la3d
Lattice Constants 12.01Å
Density 4.56-5.11 g/cm3
Melting Point 1950°C
Thermal Conductivity/(W·m-1·K-1@25°C) 0.14W
Specific Heat/(J·g-1·K-1) 0.59
Thermal Shock Resistance 790W/m
Thermal Expansion /(10-6·K-1@25°C ) 7.8
Hardness (Mohs) 8.5
Young`s Modulus /GPa 317
Shear Modulus /Gpa 54.66
Extinction Ratio/dB 30
Barrel Finish Ground Finish 400#Grit
Poisson Ratio 0.25


Laser Transition 4I11/2 → 4I13/2 (highly doped); 4I13/2 → 4I15/2 (low doped)
Laser Wavelength 2940 nm (highly doped); 1645 nm (low doped)
Photon Energy 6.75×10-20J@2940nm
Pump Absorption Band Width 600~800 nm (highly doped); 1530 nm (low doped)
Damage Threshold >500MW/cm2
Emission Cross Section 3×10-20 cm2
Fluorescence Lifetime 0.23 ms (highly doped); 2~5 ms (low doped)
Refractive Index 1.7838@2940 nm


Absorption and Emission Spectrum

Medical Laser Crystals / Er YAG Crystals With Superior Thermal Optical Properties 0 Medical Laser Crystals / Er YAG Crystals With Superior Thermal Optical Properties 1


  • High doping concentration
  • Abundant energy level structure
  • Excellent optical quality
  • Low scattering loss
  • High output and damage threshold

Contact Details