Full company details
CASTECH INC.
Bldg. No. 9, Zone F
89 Ruanjian Ave.
Fuzhou, Fujian 350003
China
Phone: +86 591 8371 0533
Fax: +86 591 8371 1593
Diffraction Gratings for Telecommunication
![Castech gratings](https://www.photonics.com/images/Web/Products/2022/8/23/CASTECH_8.22_400w.jpg)
CASTECH’s high DE reflection grating is ideal for WSS and other applications in the optical communication industry. The high-precision design of the grating provides outstanding diffraction efficiency and perfect uniformity.
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