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SAW Grade Acousto Optic Lithium Niobate LiNbO3 Wafer

Name: SAW Grade Acousto Optic Lithium Niobate LiNbO3 Wafer
Brand: Crystro
Price: 20 USD

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Brand Name :	Crystro
Model Number :	CR21011-05
Certification :	SGS/COC
Price :	USD 20~200/pc
Payment Terms :	T/T, Western Union, MoneyGram, Paypal
Supply Ability :	2000pcs per month
Delivery Time :	4-5 weeks

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SAW Grade Acousto Optic Lithium Niobate LiNbO3 Wafer

SAW Grade LiNbO3 Crystal

LiNbO₃ crystal combines low cost, good mechanical and physical properties as well as high optical homogeneity. Therefore, LiNbO₃ wedges have been widely used in fiber isolators and circulators.

LiNbO₃ is also a good acousto-optic crystal and used for surface acoustic wave (SAW) wafer and A-O modulators. Crystro provides acoustic (SAW) grade LiNbO₃ crystals in wafers, as-cut boules, finished components and custom fabricated elements.

Anhui Crystro participate in the kinds exhibitions every year: Laser World of Photonics Munich, Shanghai, Photonics West in San Francisco, CIOE in Shenzhen, etc.

Crystro provides:

LiNbO_{3 wedges used for fiber optical isolators and circulators.}
Reliable delivery
Strict quality control
Technical support
Very competitive prices

Typical SAW Properties

Cut Type	SAW Velocity V_s (m/s)	Electromechanical Coupling Factor K²_s(%)	Temperature Coefficient of Velocity TCV (10^-6/℃)	Temperature Coefficient of Delay TCD (10^-6/℃)
127.86 ° Y-X	3970	5.5	-60	78
Y-X	3485	4.3	-85	95

Typical Specifications

Specifications	Boule		Wafer
Diameter	Φ3''	Φ4''	Φ3''	Φ4''
Length or Thickness (mm)	≤100	≤50	0.35-0.5
Orientation	127.86°Y,64°Y,135°Y,X,Y,Z, and other cut
Ref.Flat Orientation	X,Y
Ref.Flat Length	22±2mm	32±2mm	22±2mm	32±2mm
Front Side polishing	/		Mirror polished 5-15 Å
Back Side Lapping	/		0.3-1.0μm
Flatness (μm)	/		≤15
Bow (μm)	/		≤25

Crystro can offer other size and specification of wafers upon request.

Crystal Structure	Trigonal, Space group R3C, Point group 3m
Cell Parameters	a=5.148 Å , c=13.863 Å
Melting Point	1253oC
Curie Temperature	1140oC
Mohs Hardness	5
Density:	4.64 g/cm3
Deliquescence	None
Optical Homogeneity	~ 5x10-5 /cm
Transparency Range	420 -- 5200 nm
Absorption Coefficient	~0.1%/cm @ 1064 nm
Refractive indices at 1064nm (Pure LN)	ne= 2.146, no = 2.220 @ 1300 nm ne = 2.156, no = 2.232 @ 1064 nm ne = 2.203, no = 2.286 @ 632.8 nm
Thermal Expansion Coefficient (@ 25oC)	//a, 2.0x10-6/K
Thermal Expansion Coefficient (@ 25oC)	//c, 16.7x10-6/K
Thermal Conductivity Coefficient:	38 W/m/K at 250 oC
Thermal Optical Coefficient	dno/dT=-0.874x10-6/K at 1.4 µm dne/dT=39.073x10-6/K at 1.4 µm
The Sellmeier equations (Pure LN)) (λ in µm)	no2 = 4.9048+0.11768/(λ2-0.04750)-0.027169λ2 ne2 = 4.5820+0.099169/(λ2-0.04443)-0.021950λ2

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SAW Grade Acousto Optic Lithium Niobate LiNbO3 Wafer

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