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Er YAG Laser Crystals

Categories Laser Crystals
Brand Name: CRYLINK
Certification: Iso9001
Place of Origin: China
MOQ: 1 Pieces
Price: negotiation
Payment Terms: TT
Supply Ability: 100 pieces /month
Delivery Time: 3-4 weeks
Packaging Details: Carton
Model Number: CRYLINK-Er YAG Laser Crystal
Name: Er YAG Laser Crystals
Chemical formula: Er3+:Y3Al5O12
Crystal structure: cubic - la3d
Lattice parameters: 12.01
Density: 4.56-5.11 g/cm3
Melting Point: 1950°C
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Er YAG Laser Crystals

Description

Erbium-doped Yttrium Aluminum Garnet (Er:YAG) is a pale green crystal with various output wavelength. Typically, highly doped Er:YAG, about 50% Yttrium atoms replaced by Erbium, is used as laser medium for 2940 nm wavelength. Due to the strong water and human body fluid absorption at this wavelength, Er:YAG laser has a wide dental and medical applications.

For example, low doped Er:YAG, about (0.1~1)% Yttrium atoms replaced, plays an efficient role in generating high power 1600 nm 'eye-safe' laser. The excellent optical and mechanical properties and a wide pump band of 600~800 nm make Er:YAG an ideal laser crystal.


Features

  • Works in a relatively eye-safe wavelength region
  • Strongly absorbed by water, hydroxyapatite and human body fluid
  • Wide pump band from 600~800 nm
  • Works well under room temperature
  • High slope efficiency
  • Good optical quality

Applications

  • Medical laser systems including skin disorder therapy, hard tissue removal, blood sugar monitoring, orthopedics
  • Dental laser systems including tooth enamel, cosmetic surgery

Chemical and physical properties

Property

Value

Chemical formula

Er3+:Y3Al5O12

Crystal structure

cubic - la3d

Lattice parameters

12.01

Density

4.56-5.11 g/cm3

Melting Point

1950°C

Refractive Index

1.7838@2940nm

Thermal Conductivity /(Wcm-1K-1@25°C)

0.14

Specific Heat/ (Jg-1K-1)

0.59

Thermal Expansion /(10-6 /°C@25°C

7.8

Hardness (Mohs)

8.5

Young`s Modulus /GPa

317

Shear Modulus / GPa

54.66

Extinction Ratio / dB

30

Orientation

[100] or [111] < ±0.5°

Poisson Ratio

0.25

Laser properties

Property

Value

Concentrations

50 at.% (highly doped); (0.1~1 at.% (low doped)

Laser transition

4I11/2 4I13/2 (highly doped)
4I13/2 4I15/2 (low doped)

Emission wavelength

2940 nm (highly doped)
1645 nm (low doped)

Pump wavelength

600~800 nm (highly doped)
1530 nm (low doped)

Fluorescence lifetime

0.23 ms (highly doped)
2~5 ms (low doped)

laser transition peak cross section, l (E-20 cm2)

3

Coatings

< 0.25% @ 2940 nm

Polishing Specification

Property

Value

Orientation Tolerance

< 0.5°

Thickness/Diameter Tolerance

±0.05 mm

Surface Flatness

</8@632 nm

Wavefront

Product Tags:

Er yag rods

  

Er yag crystal

  

Er yag laser crystal

  
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