Ti:Sapphire

Ti:Sapphire

Titanium:sapphire is a metal doped gain material used in tunable lasers and femtosecond solid-state lasers. Ti:sapphire lasers quickly replaced most dye lasers, which had previously dominated in the fields of ultrashort pulse generation and wavelength tunable lasers. Ti:sapphire solid state lasers are very reliable compered to neodymium or ytterbium doped lasers. Ti:sapphire can easily be tuned to the needed pump wavelength. These lasers can work with very high brightness pump because of their perfect beam quality at high power.

  • Optola offers wide range Ti:sapphire doping concentrations 0.05 – 0.26atm %
  • Optola offers various dimensions crystals.
  • Custom end configurations and dimensions available upon request.
  • AR Coating is available upon request.

Orientation

Optical axis C normal to rod axis

End configurations

Flat/Flat or Brewster/Brewster ends

Flatness

<λ/10 @ 633 nm

Parallelism

<10 arc sec

Surface finishing

<20/10 s/d

Wavefront distortion

<λ/4 per inch

chemical formula 

Ti3+:Al2O3

crystal structure

hexagonal

mass density 

3.98 g/cm3

Moh hardness

9

Young’s modulus

335 GPa

tensile strength

400 MPa

melting point

2040 °C

thermal conductivity

33 W / (m K)

thermal expansion coefficient 

≈ 5 × 10−6 K−1

thermal shock resistance parameter

790 W/m

birefringence

negative uniaxial

refractive index at 633 nm

1.76

temperature dependence of refractive index 

13 × 10−6 K−1

Ti density for 0.1% at. doping 

4.56 × 1019 cm−3

fluorescence lifetime

3.2 μs

emission cross section at 790 nm (polarization parallel to the c axis) 

41 × 10−20 cm2

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