Large Birefringence Yvo4 Crystals for Fiber Optic Isolators and Circulators

• Usage: Lighting, Medical, Optical, Photography
• Type: Cyrstal
• Transmittance: >95%
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: TT Crystal 6
• Shape: Single-lens
• Material: Optical Glass
• Lenses Color: Clear
• Certification: ISO9001
• Customized: Customized
• Coating: HC
• Min: 1 Unit
• Payment Term: L/C, T/T, D/P, Western Union, Paypal, Money Gram
• Thickness: as Required
• Surface Quality: 40-20 or Better
• Polished: Yes
• Centration: 1arc Minutes
• Bevel: Protective Bevel as Needed
• Wavelength Range: 400nm-700nm
• Transport Package: Carton, Blister, Customized
• Specification: As required
• Trademark: TT
• Origin: Tianjin
• HS Code: 9001909090
• Production Capacity: 4000pieces/Month
• Package Size: 10.00cm * 10.00cm * 18.00cm
• Package Gross Weight: 1.000kg

Product Description

Large Birefringence YVO4 Crystals for Fiber Optic Isolators and Circulators

Yttrium Vanadate (YVO4) crystals are positive uniaxial crystals grown using the Czochralski method. They have good mechanical and physical properties and are ideal for optical polarizing components because of their wide transparency range and large birefringence. They are an excellent synthetic substitute for Calcite (CaCO3) and rutile (TiO2) in many applications including fiber optic isolators and circulators, beam displacer, Glan polarizer and other polarizing optics.

Manufacturing accuracy of YVO4 crystals or according to customer's need 

YVO4 crystals Specification or based on clients' requirements
Diameter:	max.25mm
Length:	max.30mm
Surface Quality:	20-10
Optical Deviation:	<1 arc min
Optical Axis Orientation:	+/-0.2°
Flatness:	< λ/8 @633nm
Wave Front:	< λ/8 @633nm
Coating:	According to custmer request
Physical Properties:
Transparency Range	400~5000nm
Crystal Symmetry	Zircon tetragonal, space group D4h
Crystal Cell	A=b=7.12°, c=6.29°
Density	4.22g/cm2
Hygroscopic Susceptibility	Non-hygroscopic
Mohs Hardness	5 glass like
Thermal Optical Coefficient	Dna/dT=8.5×10-6/K; dnc/dT=3.0×10-6/K
Thermal Conductivity Coefficient	||C: 5.23 w/m/k; ⊥C:5.10w/m/k
Crystal Class	Positive uniaxial with no=na=nb, ne=nc
Refractive Indices,Birefringence( Dn=ne-no) and Walk-Off Angle at 45 deg(ρ)	no=1.9929,ne=2.2154,Dn=0.2225,ρ=6.04°,at 630nm no=1.9500,ne=2.1554,Dn=0.2054,ρ=5.72°,at 1300nm no=1.9447,ne=2.1486,Dn=0.2039,ρ=5.69°,at 1550nm
Sellmeier Equation (λin μm)	no2=3.77834+0.069736/(λ2-0.04724)-0.0108133λ2 ne2=4.5905+0.110534/(λ2-0.04813)-0.0122676λ2

Application field

Factory:
Tianjin Tengteng Optoelectronic Technology Co., Ltd. was established in 1995, focused on production, research and sales of precision optics. We have professional engineers to research and develop, and design all kinds of lens.


Other Lenses Handle
Optical Lens Design
Lens assembly and debugging


Packaging& Shipping
Package detail:
Inside Packing: Special protective packing for optical products
Outside Packing: Carton
Packing can be made according to customer's need


Payment Term:
T/T,Western Union,Paypal,L/C

Customer Question & Answer
1. Are you a manufacturer or trader? Can I visit your factory or office? How to see your factory on line?
We are a manufacturer in Tianjin, China.You are welcome to visit our factories and offices at any time.We have a video to show you our factory in detail.

2.What's your minimum order quantity?
1 unit.

3.What's your payment term?
T/T,Letter of Credit, Western Union etc.

4.Could I get free samples before making an order?
Your samples fee will be refunded when you place a large order.

5.Do you have professional person to design according to my requirement?
Of course, we have R&D department to work with you and provide you the best service until you will be satisfactory.

6. What's the lead time?
It is up to your quantity and specification and our stock.
Your products will be sent within 2 days once you make payment for the stock products.

7. Do you have enough stock?
Sure. We have enough stock because our factory is in this area for over 20 years.You can contact our salesperson to get stock at any time.

8. Can you accept OEM or ODM?
Yes, we accept all OEM and ODM.

9. Do you give a warranty of your products?
Yes, if there is a quality problem, you can contact us by email or skype or whatsapp, we can give you the solution in time. We will rework or provide the replacements to you at our cost according to actual conditions.