Products

DESCRIPTION

Basic Info

Model NO.	FW-CRYSTAL
Transport Package	Single Piece or 25 PCS
Specification	2-6 inch
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.

Physical and Optical Properties:

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

Product Parameters

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

Detailed Photos