Nd：YLF

Nd:YLF is an excellent crystal for mode-locked operation due to its low thermal lensing effect,large fluorescence linewidth and linearly polarized light beam output.

Classification:

Laser Crystals

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Detailed introduction

Nd:YLF is an excellent crystal for mode-locked operation due to its low thermal lensing effect,large fluorescence linewidth and linearly polarized light beam output.

PRODUCT FEATURE

Relatively small stimulated emission cross section

Effective single mode operation,high power and low beam divergence

The output linearly polarized laser is beneficial to get high efficiency Q-switching and frequency doubling output.

Large rods and slabs can also obtain uniform mode laser output.

It is suitable to be used as oscillator and preamplifier of high power Nd:Glass laser system.

Absorption Spectrum

Emission Spectrum

Specifications
Concentration	0.01at~3.0at%
Orientation	<100> or <001>±5°
Dimension	Diameter:3~8mm,Length:10~120mm(Customized available)
Dimension Tolerance	Φ:+0/-0.04mm,L:+0.5/-0mm
Perpendicularity	≤5′
Parallelism	≤10"
Chamfer	0.15±0.05mm
Clear Aperture	＞95%
Surface Quality	10/5(MIL-PRF-13830B)
Barrel	Fine Ground, Polishing, Grooving
Flatness	≤λ/10@632.8nm
Wavefront Distortion	≤λ/8 per inch@632.8nm
Coating	AR coating:R≤0.15%@1047,R≤0.15%@1053nm
Damage Threshold	≥750MW/cm²

Optical Properties
Laser Transition	⁴F_3/2→⁴I_11/2
Wavelength	1047nm,1053nm
Emission Cross Section	E//C:1.8×10^-19cm²@1047nm
Emission Cross Section	E⊥C:1.2×10^-19cm²@1053nm
Fluorescence Lifetime	485μs@1.0at%Nd

Physical and Chemical Properties
Crystal Structure	Tetragonal
Melting Point	825℃
Density	3.95g/cm³
Mohs Hardness	4~5
Young's Modulus	7.5×1011dynes cm^-2
Tensile Strength	3.3×108dynes cm^-2
Thermal Expansion Coefficients	<100>:13×10^-6/K
Thermal Expansion Coefficients	<001>:8×10^-6/K
Thermal Conductivity	0.06W/cm/K
Refractive Index	n₀=1.443 n_e=1.464@633nm
Refractive Index	n₀=1.448 n_e=1.470@1064nm