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10-24

2025

A Prism-Grating Component for 5G Communication

The prism-grating manufactured by CASTECH achieves a theoretical diffraction efficiency of over 98%, a line density period accuracy of ±0.1 line/mm, and a grating line verticality of ±0.1°.

2025-10-24

A Prism-Grating Component for 5G Communication

10-23

2025

The Developmental Journey of BBO Crystal

BBO crystal is hailed as the first "Made-in-China" crystal created by Chinese scientists based on their own original scientific ideas.

2025-10-23

The Developmental Journey of BBO Crystal

10-22

2025

"Master" of Phase Control — Phase Modulator

Phase modulators are widely used in various applications, such as: Encoding advanced code formats in optical communication，Generating keys in quantum communication，Suppressing stimulated Brillouin scattering in the SG-II (Shenguang-II) laser facility，Canceling phase shifts in fiber-optic gyroscopes.

2025-10-22

"Master" of Phase Control — Phase Modulator

10-22

2025

"Light Follows My Command, Controlled at Will"

Laser modulators are a type of laser control components, characterized by high integration and diverse types and functions. They are classified into intensity modulators, phase modulators, frequency shifters, deflectors, and so on.

2025-10-22

"Light Follows My Command, Controlled at Will"

10-21

2025

Ding! Your 0.1-Nanometer Ultra-Smooth Surface Test Report Has Arrived

Surface roughness refers to the micro-irregularities on a machined surface. The smaller the surface roughness, the smoother the surface becomes.We commonly refer to the surfaces of optical components with ultra-low surface roughness as "ultra-smooth surfaces"

2025-10-21

Ding! Your 0.1-Nanometer Ultra-Smooth Surface Test Report Has Arrived

09-30

2025

TSAG Crystal: A Magneto-Optical Material

Terbium Scandium Aluminum Garnet (Tb₃Sc₂Al₃O₁₂,TSAG) is the key isolator material for next generation fiber laser. As an ideal magneto-optic crystal in visible and infrared regions, TSAG has the advantages of high Verdet constant,excellent thermal and mechanical properties.

2025-09-30

TSAG Crystal: A Magneto-Optical Material

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