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Yb CaF2 Laser Crystals

Categories Laser Crystals
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
MOQ: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Model Number: CRYLINK-Yb CaF2 Crystal
Name: Yb CaF2 Laser Crystals
Chemicalformula: Yb3+:CaF2
Orientation: [111] or [100] < ±0.5°
Young'smodulus: 146GPa
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Yb CaF2 Laser Crystals

Description

Due to the toughness and the flexible and cheap production process, CaF2 has been used in many substrate materials for laser crystals. As an amplifying ion, Yb3+ also allows a three-level laser scheme, leading to low quantum defects and a significantly longer fluorescence lifetime. Yb3+:CaF2 can also provide a high optical efficiency and high output powers due to the reduced thermal load. Recently, ytterbium-doped alkaline-earth fluoride is mostly used in diode-pumped femtosecond laser and amplifiers. Alkaline-earth fluorides which can be easily grown by using the standard Czochralski or Bridgman technique show a great potential in the wide transmission range, high damage threshold and low dispersion behavior.


Features

  • Low quantum defect
  • High damage threshold, good thermal conductivity
  • Long fluorescence lifetime
  • Low dispersion behavior
  • Broad absorption bandwidth
  • Limited nonlinear effects under intense laser irradiation

Applications

  • High power ultrafast thin-disk oscillators
  • Passively mode-locked oscillators
  • Solid state tunable laser

Chemical and physical properties

Property

Value

Chemicalformula

Yb3+:CaF2

Crystalstructure

cubic

Latticeparameters,

5.462

Orientation

[111] or [100] < ±0.5°

Massdensity

3.18 g/cm3

Mohshardness

4

Young'smodulus

146GPa

Tensilestrength

2GPa

Meltingpoint

1418°C

Thermalconductivity

9.71

SpecificHeat/ (Jg-1K-1)

0.8876

ThermalExpansion /(10-6/°C@25°C

(16.5...19.4)

Thermalshock resistance parameter

800W/m

Refractive Index @ 1064 nm

1.2996

Optical properties

Property

Value

Optical Density

0.1 to 0.8

Fluorescencelifetime

2.4ms

Concentrations

0.5mol % ~ 30 mol %

Emissionwavelength

1015nm ~ 1060 nm

AbsorptionCoefficient

1.0cm-17 cm-1

Ground state absorption cross section

0.8x10-20 cm2

Emission state absorption cross section:

2.2x10-20 cm2

Transmission

10% to 90%

Coatings

AR0.2% @1030nm

Damage Threshold:

> 500 MW / cm2

Polishing Specification

Property

Value

OrientationTolerence

<0.5°

Thickness/DiameterTolerance

±0.05mm

Surface Flatness

</8@632nm

Wavefront Distortion

</8@632nm

Surface Quality

10/5

Quality Yb CaF2 Laser Crystals for sale
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