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Precision Optical Crystals &
Laser Components

Coupletech Co., Ltd. is a leading manufacturer of Pockels cells, optical crystals, and electro-optic devices for high-performance laser systems. Trusted by researchers, engineers, and OEMs worldwide.

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About Coupletech

Coupletech Co., Ltd. manufactures, develops, and markets a wide range of optical crystals and devices used in optoelectronics, laser technology, and scientific research. With advanced production technology and strict quality control, we deliver high-reliability components trusted globally.

Our product line includes laser crystals such as Nd:YVO4, Diffusion Bonded Composite Crystal, Nd:YLF, Cr:YAG; nonlinear optical (NLO) crystals including KTP, KTA, BIBO, LBO, BBO, DKDP, KDP; fluoride crystals like CaF2, BaF2, MgF2; and crystal devices such as DKDP Q-Switches and LN Q-Switches.

Certified Quality

ISO & industry-standard compliant manufacturing

Global Reach

Serving clients in 50+ countries

Optical Crystal Lab

Expertise in Electro-Optics

  • Pockels Cells & Drivers
  • Q-Switching Solutions
  • High Damage Threshold Devices
  • Custom Design Support

Our Featured Products

High-performance optical components engineered for precision, durability, and reliability in demanding laser applications.

Double BBO Crystal Pockels Cells

Used to control polarization state under applied voltage. Ideal for Q-switching, cavity dumping, and regenerative amplifiers. Low piezoelectric ringing makes them ideal for high-power and high-repetition-rate lasers.

Low Vπ/4 High Rep Rate

Double DKDP (KD*P) Crystal Electro-Optical Cell

Recognized for advanced production technology and high quality. Used in high-voltage electro-optic applications with excellent transmission and stability.

High Stability Low Loss

Potassium Titanyl Phosphate KTP EO Q-Switch

Features two H-KTP crystals with very low quarter-wave voltage. Hydrothermal-grown KTP avoids electrochromic damage, offering high resistivity and damage threshold. Ideal for Q-switching, pulse picking, and E-O modulation.

H-KTP Crystal High Damage Threshold

MgO Doped Lithium Niobate Electro-Optical Q-Switch

Excellent EO Q-switch and Pockels cell. Offers good mechanical, physical, and electro-optic properties. Widely used in Er:YAG, Ho:YAG, Tm:YAG pulsed solid-state laser systems.

Low Cost High Reliability

LBO Nonlinear Optical Crystal

High damage threshold, wide transparency range, and small walk-off angle. Ideal for frequency doubling, tripling, and mixing in UV and visible laser systems.

High Damage Threshold UV Compatible

Nd:YVO4 Laser Crystal

High gain and absorption efficiency. Commonly used in diode-pumped solid-state lasers for green and infrared output. Excellent thermal and mechanical stability.

High Gain DPSS Compatible

BBO Crystal

Broad phase-matching range and high damage threshold. Used in ultrafast lasers, frequency conversion, and UV generation. Excellent for high-power applications.

UV Generation Ultrafast Compatible

Pockels Cell Driver

Fast-switching electronic drivers matched to Pockels cells for Q-switching, cavity dumping, and pulse picking. Designed for stability and precision timing.

Precision Timing High Voltage
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Why Choose Coupletech?

Engineered for performance, reliability, and innovation in every optical component.

High Damage Threshold

Our crystals and Pockels cells are designed to withstand high-intensity laser beams without degradation, ensuring long-term reliability.

Low Voltage Operation

Optimized electro-optic materials like H-KTP and BBO enable low quarter-wave voltage, reducing power requirements and improving efficiency.

Custom Solutions

We offer tailored designs for Pockels cells, crystals, and drivers to meet specific application requirements in research and industry.

50+
Countries Served
15+
Years Experience
1000+
Products Delivered
99.8%
Customer Satisfaction

Frequently Asked Questions

What is a Pockels Cell?

A Pockels cell is an electro-optic device that changes the polarization of light passing through it when a voltage is applied. It is commonly used for Q-switching, cavity dumping, and optical modulation in laser systems.

What are the advantages of H-KTP crystals?

Hydrothermal-grown KTP (H-KTP) crystals have higher resistivity and damage threshold compared to flux-grown KTP. They are less prone to electrochromic damage, making them ideal for high-power and long-duration laser applications.

Can you customize Pockels cells?

Yes, Coupletech offers custom design and manufacturing of Pockels cells, drivers, and optical crystals to meet specific voltage, aperture, wavelength, and environmental requirements.

What applications use BBO Pockels Cells?

BBO Pockels Cells are used in Q-switching, cavity dumping, regenerative amplifiers, and ultrafast laser systems due to their low piezoelectric ringing and high damage threshold.

Get in Touch

For inquiries, technical support, or custom solutions, visit our official website to contact Coupletech directly.

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