Tm YLF Crystals For Many Applications In Scientific Defence Medical Fields

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-Tm YLF Laser Crystal
Minimum Order Quantity: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Detail Information
Name: Tm:YLF Concentration Tolerance (atm%): 2-4 At.%
Lattice Constants: 4~5 Orientation: A-cut, Other Orientations Also Available
Parallelism: <10” Perpendicularity: <5”
High Light:

laser material


titanium doped sapphire

Product Description


Two-micron Tm3+ lasers are of interest for many applications in the scientific, defence, and medical fields. Thulium readily substitutes into many crystal hosts that are suitable for high-average-power laser systems and it has an absorption band at ~0.8 m allowing excitation with commercially available high power laser diodes. Thulium doped yttrium fluoride lithium crystals have low nonlinear refractive index and thermo optic constant , which are very suitable for the application in the fields of scientific research, production, education and other optoelectronic fields. The crystal is a negative uniaxial crystal with a negative refractive index temperature coefficient, which can offset some thermal distortion and thus has high beam quality output. The pump wavelength is 792 nm, and the linear polarized laser with wavelength of 1900nm outputs at in the direction of a axis. outputting light from c axis is non-linear polarized. High power laser output can be obtained by selecting proper crystal size and doping concentration.


Material and Specifications
Concentration Tolerance (atm%) 2-4 at.%
Lattice Constants 4~5
Orientation a-cut, other orientations also available
Parallelism <10”
Perpendicularity <5”
Surface Quality 10-5 scratch & dig
Wavefront Distortion /8 @ 633nm
Surface Flatness /10 @ 633nm
Clear Aperture 95%
Length Tolerance ±0.1 mm
Face Dimensions Tolerance +0/-0,1 mm
Protective Chamfers <0,1 mm at 45
Damage Threshold over 15J/cm2 TEM00, 10ns, 10Hz
Physical and Chemical Properties
Crystal Structure Tetragonal
Lattice Constants a=5.16; c=10.85
Density 3.99 g/cm
Melting Point 819℃
Thermal Conductivity 6 Wm-1K-1
Thermal Optical Coefficient(dn/dT) = 4.3 x 10-6 x °K-1; = 2.0 x 10-6 x °K-1
Thermal Expansion /(10-6K-1@25°C ) 10.1×10-6 (//c) K-1, 14.3×10-6((//a) K-1
Hardness (Mohs) 5
Shear Modulus /Gpa 85
Specific Heat 0.79 J/gK
Poisson Ratio 0.3



Optical and Spectral Properties
Laser Transition 3F43H6
Laser Wavelength :1880 nm; :1908 nm
Absorption Cross-section at Peak 0.55×10-20 cm2
Absorption Bandwidth at Peak Wavelength 16 nm
Absorption Peak Wavelength 792 nm
Lifetime of 3F4 Thulium Energy Level 16 ms
Quantum Efficiency 2
Non-linear Index n2 0.6 x 10-13
Optical Quality < 0.3 x 10-5
Refractive Index @1064 nm no=1.448, ne=1.470

Contact Details

Phone Number : +8618699681379