Tm:YLF

Regular price $550.00

Tax included.

Thulium doped yttrium fluoride lithium (Tm: YLF) crystals have a 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. Tm: YLF 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 the wavelength of 1900nm outputs in the direction of an axis. outputting light from the c axis is non-linear polarized. High power laser output can be obtained by selecting the proper crystal size and doping concentration. Two-micron Tm3+ lasers are of interest for many applications in the scientific, defense, and medical fields. Thulium readily substitutes many crystal hosts that are suitable for high-average-power laser systems and it has an absorption band at ~0.8 μm allowing excitation with commercially available high power laser diodes.

Size(mm)
Length(mm)
End surface
Doping
Coating
Price
Delivery
(week)
Order
3*3
8
Right angle cutting
3%
AR/AR@792 nm+ 1800-1960 nm
550
1-2
3*3
8
Brewster angle cutting
3%
Uncoated
510
1-2

 

Laser Transition 3F43H6
Laser Wavelength π:1880 nm; σ: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
Laser Induced Damage Threshold >10 J/cm2@1900 nm, 10 ns
Coatings R<0,5% @792 nm + R<0,15% @1800-1960 nm on both sides; custom coatings also available

 

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