Cr:LiSGaF Laser Rods
Cr:LiSGaF (Cr:LiSrGaF₆) is a newly developed laser media suitable for tunable applications over a wavelength range of 770 to 990nm. Cs:LiSGaF is highly efficiency and capable of being pumped by a wide range of sources. Cr:LiSGF is versatile and is used across a broad range of applications, especially to configure compact solutions.

Key strengths of Cr:LiSGaF:
  • Lases (tunable) over range 720 to 840nm
  • Highly efficient - high absorption coefficients
  • Can be pumped by a wide range of sources - flashlamps, diode lasers and other lasers.
Cr:LiSGaF Laser - Availability
Doping Levels: Custom - range 0.5 to 5.5 mol %
Format: Rods, Discs and Slabs
Sizes: Diameter: 25.4mm max and Length: 180mm max
Cr:LiSGaF Laser Rod Properties
Laser / Optical Properties Units Value
Laser Wavelengths nm 770 - 990
Emission Linewidth nm <1
Absorption Band Peak nm
Absorption Bandwidth nm
Emission Cross-section (@1064nm) 10‾²º cm² 3.3
Fluorescent Lifetime µs 88
Absorption Coefficient @808nm cm‾¹ TBA
Intrinsic Loss @1064nm cm‾¹ <0.003
Refractive Index (n) @ 382nm 1.4
Thermal Optical Coeff. (dn/dT) @nm 10‾⁶/ºC TBA
TBA
Physical / Thermal Properties Units Value
Chemical Formula Cr:LiSrGaF₆
Melting Point ºC 716
Thermal Expansion Coeff. @20ºC 10‾⁶/ºC -6
13
Thermal Conductivity Coeff. @20ºC W/m/ºK 3.6
3.4
Specific Heat J/g K 0.935
Chemical Durability (@100ºC weigh loss rate distilled water) μg/hr.cm²
Density g/cm³ 3.89
Durability Knoop Hardness kgf/mm²
Mohs Hardness
Damage Threshold (10ns) J/cm² >55