Optical Near Infrared Volume Phase Holographic (VPH) Transmission Rectangular Gratings

• Customization: Available
• Usage: Lighting, Medical, Optical, Photography
• Type: Spherical Optical Lenses
• Model NO.: TT Grating-12
• Transmittance: >95%
• Shape: Single-lens
• Material: Optical Glass
• Lenses Color: Clear
• Certification: ISO9001
• Customized: Customized
• Coating: HMC
• 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
• Bevel: Protective Bevel as Needed Products Learn More
• Diameter Tolerance: +0/-0.01 or as Required
• 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

Optical Near Infrared Volume Phase Holographic (VPH) Transmission Rectangular Gratings 

Diffraction gratings
Diffraction gratings are used to separate light into component wavelengths, are offered in both transmission and reflective varieties for use from the UV to the MIR. Our diffraction grating selection includes ruled (blazed), volume phase holographic, holographic, echelle, and a grating modulator. 

NIR Volume Phase Holographic Transmission Grating 
 

• Five Design Wavelengths from 840 nm to 1300 nm
• High First-Order Diffraction Efficiency
• Resistant to Fingerprint and Aerosol Damage

Features

• Design Wavelength (DWL) and Spatial Frequency Options:
  • 840 nm: 1200 Lines/mm
  • 900 nm: 1000 Lines/mm
  • 930 nm: 900, 1200, or 1500 Lines/mm
  • 1030 nm: 800 or 1800 Lines/mm
  • 1300 nm: 800 Lines/mm
• High First-Order Diffraction Peak Efficiency (See Tables Below)
• Uniform Performance Over Broad Bandwidths (See Diffraction Efficiency Graphs Below)
• Extremely Low Scatter Between Orders (No Ghosting)
• Dichromated Gelatin (DCG) Film Between Two Glass Substrates
• Ideal for Spectroscopy, Optical Coherence Tomography (OCT), and Laser Pulse Compression

Near Infrared Volume Phase Holographic (VPH) Transmission Gratings are ideal for applications that require high diffraction efficiency.

Common Specifications
Grating Film	Dichromated Gelatin
Cover-Plate Substrate	GP3508P and GP1118P:
	C7980 Fused Silicaa or Equivalent
	All Others: N-BK7a or Equivalent
Thickness Tolerance	±0.2 mm
Spatial Frequency	±2 lines/mm
Tolerance
AOI Tolerance	±1°
Transmitted Wavefront	<λ/4 at 632.8 nm
Error (RMS)
Surface Quality	40-20 Scratch-Dig

Selection Guide
Transmission Gratings
Ruled	UV
	Visible
	Near IR
Volume Phase	Visible
Holographic	Near IR
Reflective Gratings
Ruled	UV
	Visible
	Near IR
	Mid IR

Manufacturing accuracy of lenses or according to customer's need

Inspections

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.