Nd:YCOB

CRYLINK’s Nd:YCOB crystal products, also known as Nd:YCa₄O(BO₃)₃ crystal. It is a kind of laser crystal product with excellent comprehensive performance. It is widely used in the fields of frequency doubling laser, ranging and LD pumping. The product has uniform melting behavior and self-doubling laser action characteristics. Can be used in solid state laser, Nd:YCOB laser, continuous wave self-frequency doubling laser, diode pump ranging system products.

Parameters

BASIC PARAMETERS

Chemical formula	Nd:YCa₄O(BO₃)₃
Crystal system	Monoclinic (m), biaxial
Lattice constant	a = 0.8076Å，b=1.6020 Å, c = 0.3527Å，β=101.23°
Melting point	1510℃
Density	3.31 g/cm³
Mohs hardness	6.0-6.5 (mohs)
Growth method	Czochralski growth
Refractive index@1064nm	n_x=1.6844, n_y=1.7152, n_z=1.7256
Fluorescent lifetime	105μm
Emission cross-section	0.45×10^-19cm²
Absorption peak	796, 812nm
Absorption cross-section at pump wavelength	2.3×10^-20 cm²
Absorption cross-section at SFD wavelength	0.40×10^-20 cm²
Transmission range	1000-2600nm
Damage threshold	>1 Gw/cm²@532 nm, 6 ns
SHG d_eff @1.06 μm (I type)	1.1 pm/V

THE PARAMETERS OF SELLMEIER EQUATION

Sellmeier equation	n²(λ)=A+-D
Parameter	n_x	n_y	n_z
A	2.78232	2.88739	2.92685
B	0.01120	0.01223	0.01474
C	0.08990	0.08855	0.07466
D	7.2561×10^-5	6.1142×10^-5	5.2148×10^-5

STANDARD SPECIFICATIONS

Direction tolerance	< 0.5°
Thickness/diameter tolerance	±0.01 mm
Surface flatness	<λ/8 @632nm
Wavefront distortion	<λ/4 @632nm
Surface quality	5-Oct
Parallel degrees	30〞
Perpendicularity	15ˊ
Clear aperture	>90%
Chamfer	<0.2×45°