CASTECH Gratings
Description
We provide the replication copied from the master grating. It has the same performance at a lower price. Besides, we can provide a customized grating.
CASTECH Gratings
Specifications |
|
|---|---|
| Diameter: | 40 mm |
| Thickness: | ±0.2 mm |
| Substrate: | Fused Silica |
| Flatness: | lambda/4 |
| Single Or Dual Surface: | Contact Vendor |
| Ref. Index: | ... |
| Abbe Number: | ... |
| Exp. Coefficient: | ... Per degree Celsius |
| Surface Quality: | 60-40 scratch-dig |
| Parallelism: | ＜6 arc min |
| Line Density: | 1200.0 line/mm |
| Line Density Uniformity: | 0.1 line/mm |
| Dimension Tolerance: | ±0.2 mm |
| Parellelism: | ＜0.1 ° |
| Perpendicularity: | ＜0.1 ° |
| Scratch: | 60/40 / |
For pricing, technical or any other questions please contact the supplier
- No registration required
- No markups, no fees
- Direct contact with supplier
Contact Supplier
How to order?
-
Ships from:
China
-
Sold by:
-
On FindLight:
since 2018
Frequently Asked Questions
CASTECH Gratings are replication copies of master gratings that have the same performance at a lower price. They can also be customized.
The High Efficiency Reflection Grating is popular in telecom at 1550nm, especially for WSS, and for spectroscopy.
The diffracti on efficiency of the High Efficiency Reflection Grating is greater than 93% at 1550nm central wavelength and greater than 70% at 250nm central wavelength.
The substrate materials used for the CASTECH Gratings are UVFS, ULE, and BK7.
The dimension tolerance for the CASTECH Gratings is ±0.2mm for all edges.