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New Products

Exhibition Information

CIOE 2025

CIOE 2025

The 26th China International Optoelectronic Exposition (CIOE 2025) will take place from September 10 to 12, 2025, at the Shenzhen World Exhibition and Convention Center.
2025 Laser World of Photonics

2025 Laser World of Photonics

CASTECH will actively participate in the Laser World of Photonics (LWP) in Munich from 24-27 June 2025

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CASTECH INC. Stock code 002222

After 30 years` rapid growth since the foundation in 1990, CASTECH INC.  has become a recognized leading supplier of crystals,  optics and  laser components in the world. In 2008 CASTECH successfully completed IPO in Shenzhen stock exchange. (Stock Code 002222) Today, at our 450,000 sq ft advanced facility, over 1000 employees are dedicating to satisfy customer needs in terms of performance and cost effectiveness 

30 +

The company was founded more than 30 years ago

40000 +

The total area exceeds 40,000 square meters

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Over 1,000 employees

50 %

Around 50% exported to other countries

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NEWS

DKDP Crystal: "Brilliant and Enduring"​

DKDP Crystal: "Brilliant and Enduring"​

2025-11-19

Numerous optical crystals have emerged, the "veteran" DKDP crystal remains "Brilliant and Enduring". This enduring popularity stems from DKDP's excellent optical properties and continuous advancements in processing technologies.
Let’s Talk About Impedance Matching​

Let’s Talk About Impedance Matching​

2025-11-18

Impedance matching is a critical aspect of the manufacturing and application of acousto-optic devices. Even minor disruptions, such as physical contact or displacement of internal components during assembly or use, may cause impedance mismatch, leading to performance degradation or device failure.
CLBO: An Excellent Nonlinear Crystal for Short-Wave Ultraviolet Applications

CLBO: An Excellent Nonlinear Crystal for Short-Wave Ultraviolet Applications

2025-11-05

CLBO crystals developed and produced by CASTECH, through this specialized high-performance coating process, demonstrate both excellent transmittance and damage resistance
A Prism-Grating Component for 5G Communication

A Prism-Grating Component for 5G Communication

2025-10-24

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°.

CULTURE

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