Nd YAP Laser Crystals

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-Nd YAP 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
Materials: Nd:YAP Orientation: <5°
Parallelism: ≤10 Perpendicularity: ≤5′
Surface Quality: 10-5 (MIL-O-13830A) Wavefront Distortion: /8 @ 633nm
High Light:

laser material


titanium doped sapphire

Product Description

The chemical formula of Nd: YAP is Nd3+: YAlO3, and the structure is distorted perovskite, belonging to oblique hexagonal crystal system, and spatial group is Pbnm, whose axes a, b and c are perpendicular to each other, belongs to negative uniaxial crystals and is anisotropic. Among the numerous neodymium-doped laser crystals, Nd: YAP crystal not only has high thermal conductivity, but also has a larger excited emission cross section at 4F3/24 I13/2 transition. They are one of the most effective laser crystals known at present for the high-power operation at the 1300nm, the crystal is mainly pumped by LD. 1300nm lasers are widely used in the field of medicine, optical fiber communication and military. What’ s more, water molecule has good absorption at this laser band. Which makes it have a very good hemostatic ability, and widely used in laser therapy, such as hemostasis, neurosurgery, resection of pathological tissues and wrinkle removal. In addition, Nd: YAP crystal has natural birefringence characteristics, which is very beneficial to overcome the thermal depolarization and nonlinear frequency transformation of laser.


Material and Specifications
Materials Nd: YAP
Orientation <5°
Parallelism ≤10
Perpendicularity ≤5′
Surface Quality 10-5 (MIL-O-13830A)
Wavefront Distortion /8 @ 633nm
Surface Flatness ≤ /10 @632.8nm
Clear Aperture >95 %
Length tolerance +0.5/-0mm
Thickness/Diameter Tolerance ±0.05 mm
Damage Threshold ≥500MW/cm2
Physical and Chemical Properties
Crystal Structure orthorhombic Pbnm
Lattice Constants a=5,176, b=5,307, c=7,355
Density 5,35 g/cm3
Melting Point 1870°C
Thermal Conductivity 0,11 W/(cm K)
Thermal Optical Coefficient(dn/dT) na:9.7×10-6 K-1 nc:14.5×10-6 K-1
Thermal Expansion/(10-6K-1@25°C) 9.5 (a axis), 4.3(b axis), 10.8(c axis)
Hardness (Mohs) 8.5
Shear Modulus /Gpa 2.2×1012 dyn/cm2
Specific Heat 400 J/(kg K)
Linear dispersion n/T [10-6K-1] 9.7 (na)
Optical and Spectral Properties
Laser Transition 4F3/24I9/2 930 nm 4F3/24I11/2 1079 nm
4F3/24I13/2 1340 nm 4F3/24I13/2 1432 nm
Laser Wavelength 930nm 1079nm 1340nm
Fluorescence Lifetime 170ms
Refractive index @1064 nm na=1,929, nb=1,943, nc=1,952

Absorption and Emission Spectrum Emission Cross Section

Wavelength (nm) Emission Cross Section 10-19cm2
a-cut b-cut c-cut
1079 2.05 1.76 1.38
1340 1.13 0.97 0.78

Contact Details

Phone Number : +8618699681379