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Tetragonal 2810nm Q Switched Er YLF Laser Crystal

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Tetragonal 2810nm Q Switched Er YLF Laser Crystal

Brand Name : CRYLINK

Model Number : CRYLINK-Er:YLF Laser Crystal

Certification : Iso9001

Place of Origin : China

MOQ : 1

Price : negotiation

Payment Terms : T/T

Supply Ability : 1000 pieces /month

Delivery Time : 3-4 weeks

Packaging Details : Carton

Orientation : A-cut

Surface Quality : 10-5 S-D

Structure Symmetry : Tetragonal

Specific mass : 3.95g/cm3

Absorption Peak Wavelength : 972nm

Laser Wavelength : 2810nm

Application : oral surgery,otolaryngology

Feature : Wide transparency range

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Er:YLF Laser Crystal

►Description

Er3+:YLF crystals are characterized by low phonon frequency, which decreases the probability of non-radiative multi-phonon relaxations, therefore increases luminescence quantum efficiency. Long lifetime of laser emitting levels allow higher energy storage, which is useful for the Q-switch lasing regime. High band-gap along with low phonon energy determines very wide transparency range, which is possibly from VUV to 10μm region. Negative Er3+:YLF thermo-optic coefficient is an advantage, since it reduces thermal-lensing effect and improves beam shape as well as stability at high average pump power.

►Features

  • A low phonon frequency
  • Long lifetimes of the laser emitting levels
  • Wide transparency range (from the VUV to the 10 μm region)
  • Negative thermo-optic coefficient
  • Custom crystals available upon request

►Application

  • CW and Q-switched ~3 μm lasers for oral surgery, dentistry, implant dentistry, and otolaryngology
  • Up-conversion visible lasers for display technology, medicine (diagnosis and treatment)

►Parameter

  • Material and Specifications

Orientation A-cut
Parallelism <10〞
Perpendicularity <10ˊ
Surface Quality 10-5 S-D
Wavefront Distortion <λ/4 per inch@632.8 nm
Surface Flatness <λ/10 @632.8 nm
Clear Aperture >90%
Face Dimensions Tolerance +0.0/-0.1 mm
Length Tolerance ±0.1mm
Chamfer <0.1mm@45°
  • Physical and Chemical Properties

Structure Symmetry Tetragonal
Lattice Constants a=5.173, c=10.747 Å@1.5%
Specific mass 3.95g/cm3
Melting Point 819°C
Thermal Conductivity /(W·m-1·K-1) ～5
Specific Heat(J·g-1·K-1) 0.79
Thermal Expansion /(10-6·K-1 ) 8
Hardness (kg/mm2@Mohs) 5
Young`s Modulus /(108g/cm2) 7.65
  • Optical characteristics

Typical Doping Level 15@.%
Refractive Index (@2070nm) no=1.442, ne=1.464
Thermo-optic Coefficient(10-6·K-1) -2(∥a), -4.1(∥c)
Lifetime of 4I11/2 Erbium Energy Level(ms) 4
Emission Cross Section(10-20/cm2) 1.5@2800nm
Absorption Peak Wavelength 972nm
Absorption Coefficient at Peak Wavelength 28cm-1
Absorption Bandwidth at Peak Wavelength ～1nm
Laser Wavelength 2810nm
  • Absorption and Emission Spectrum

Tetragonal 2810nm Q Switched Er YLF Laser Crystal


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