Products

DESCRIPTION

Basic Info

Model NO.	FW-CRYSTAL
After-sales Service	After-Sale Service
Warranty	12
Shipping	FedEx, DHL, UPS...
Grade	Optical Grade
Transport Package	Single Piece or 25 PCS
Specification	customerised
Trademark	FineWin
Origin	China

Product Description

Lithium niobate (LiNbO3) is a ferroelectric material suitable for a variety of applications. Its versatility is made possible by the excellent electro-optic, nonlinear, and piezoelectric properties of the intrinsic material. It is one of the most thoroughly characterized electro-optic materials, and crystal growing techniques consistently produce large crystals of high perfection.

Application

• Frequency doubling for wavelengths >1μm and optical parametric oscillators (OPOs) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices;

• Pockel cells, Q-switches, and phase modulators;

• Waveguide substrates, surface acoustic wave (SAW) wafers.

Product Parameters

Crystal Structure	Trigonal, space group R3c
Cell Parameters	a=0.515,c=13.863,Z=6
Melting Point	1255 +/-5ºC
Curie Point	1140 +/-5ºC
Mohs Hardness	5
Density	4.64 g/cm 3
Absorption Coefficient	~ 0.1%/cm @ 1064 nm
Solubility	insoluble in H2O
Relative Dielectric Constant	εT11/ε0: 85
	εT33/ε0:29.5
Thermal Expansion	||a, 2.0 x 10 -6/K @ 25ºC
Coefficients at 25ºC	||c, 2.2 x 10 -6/K @ 25ºC
Thermal Conductivity	38 W /m /K @ 25ºC
Transparency Range	420 - 5200 nm
Refractive Indices	n e = 2.146, n o = 2.220 @ 1300 nm
	n e = 2.156, n o = 2.322 @ 1064 nm
	n e = 2.203, n o = 2.286 @ 633 m
Optical Homogeneity	~ 5 x 10 -5 /cm
Sellmeier Equations ( l in mm)	n o 2 (l ) = 4.9048+0.11768/(l2- 0.04750) - 0.027169l2
	n e 2 ( l) = 4.5820+0.099169/( l2 - 0.04443) - 0.021950 l2

Specifications:

Material	Laser grade LiNbO3
Orientation	±0.5o
Dimensional Tolerance	±0.1mm
Surface quality	20/10 Scratch/Dig per MIL-O-13830B
Flatness	λ/8 @ 633 nm
Perpendicularity	5 arc min
Parallelism	better than 20 arc sec
Clear Aperture	> Central 90%
AR Coating	AR coating with R < 0.2% at center Wavelength

4. Related LiNbO3 Optical Wafer we can supply
optical grade quality wafers
Saw grade quality wafers
MgO doped LiNbO₃
Fe doped LiNbO₃

Innovation point: Through the growth equipment modification,we create simulation of crystal growth system and can design crystal shape. The computer chip control the changing of crystal shape according to crystal growth status, through the processing of precision sensor signals. We self-design a set of graded composite temperature structure. With the help of it, the temperature gradient in crystals, melt and the solid liquid interface reach the good state for optical crystal growth.

Product Pictures: