コヒレント・ジャパン List of Products and Services

The high-power fiber laser sapphire aspherical lens (wavelength 1 μm band) is a product that combines excellent optical properties with high heat resistance and wear resistance by using sapphire material, demonstrating stable performance even in harsh environments. This product enhances light gathering ability through aspherical design, optimizing laser beam quality. This enables precise processing and measurement, making it an ideal product for industrial laser systems. Additionally, it accommodates a wide wavelength range, allowing for various applications. Furthermore, the high transmittance of this product minimizes energy loss, enabling efficient energy use and contributing to cost reduction. Its easy installation also allows for smooth replacement in existing systems. The sapphire aspherical lens is an ideal product for customers seeking reliable products and high-quality optical components.

Our high-speed 850 nm multimode VCSEL chip is designed to meet the stringent specifications of high-speed data communication. Features • 850 µm multimode • Narrow spectral width • High reliability • Single chip • Compatible with 4,12 arrays • RoHS compliant

Our scan lenses are based on the latest optical design and offer both telecentric and non-telecentric types. They cover a wide range of wavelengths including 266 nm, 355 nm, 532 nm, 1064 nm, and 10.6 µm, and possess diffraction-limited performance. The internal optical elements have no back reflection spots and are made from materials such as synthetic quartz, CaF2, and sapphire to withstand high-power lasers, with a laser endurance exceeding 6 KW. Additionally, these lenses have a very high uniformity of the focal spot at over 95%, and in the case of telecentric lenses, the telecentricity error is kept below 1°. The focal lengths range from 32 mm to 920 mm, and the scan field can accommodate sizes from 6 x 6 mm to 710 x 710 mm. Options for water cooling and air cooling are available. Furthermore, the optical coatings feature low-reflectivity AR coatings, with reflectivity typically kept very low at R<0.2%. Absorption and scattering are also minimized, ensuring reliable performance.

3 Junction 905 nm Single Emitter TO56 Radial Plastic Package Features • 905 nm wavelength • Highly reliable 3 Junction structure • Emission area 200 μm × 10 μm • Chip cavity length 600 μm • RoHS compliant

The thermoelectric cooler (Peltier element) is a heat dissipation, cooling, and temperature control device with high reliability due to its solid-state structure. With no moving parts, it has a low risk of failure and maintains stable performance over long periods. It can heat and cool according to DC polarity, achieving precise temperature control. This device operates without vibrations and is highly quiet, eliminating the generation of acoustic and electrical noise. Additionally, since it does not use chlorofluorocarbons, it can be safely used in specific environments. Furthermore, it offers high scalability, allowing for device designs optimized for specific applications. The thermoelectric cooler performs well regardless of physical or gravitational orientation, functioning effectively in reverse or sideways positions. It can operate in zero-gravity environments, making it capable of withstanding high gravity in aerospace applications. It is suitable for a wide range of uses and is a product that we highly recommend for customers seeking high reliability and performance.

Our single-mode VCSEL is designed to meet the stringent specifications of a wide range of optical sensing applications. Features • Single-mode • Polarization-stable emission • Gaussian beam profile • High reliability • Low power consumption • Back cathode and top anode configuration • RoHS and REACH compliant

We manufacture high-quality lenses, windows, output couplers, beam splitters, and other optical components using ZnSe produced by a major materials manufacturer. ZnSe offers high uniformity and homogeneity for imaging applications, and low absorption and low scattering for high-power laser applications. Its visible light transmission makes the alignment of optical systems easier. ZnSe is non-hygroscopic and chemically stable.

Partnering with the world's largest sapphire window manufacturer. Coherent is a vertically integrated manufacturer capable of growing, polishing, and coating windows up to 200 mm. Sapphire possesses a unique combination of properties, including a wide transmission range, high hardness, mechanical strength, and chemical resistance, making it ideal for a wide range of applications such as drones, unmanned vehicles, and medical devices.

Using this optical system, the cutting efficiency of the CO₂ laser is improved, allowing for dynamic adjustment of the focal depth and correction of the focal length variation across the entire work table. The variable radius mirror is a unique component that can adjust beam divergence on the fly by changing the curvature radius of the optical elements using hydraulic or pneumatic pressure. These can be offered in a wide range of custom configurations.

For high-power cavity pulse control applications, high-quality optical materials and high-damage-threshold coatings are available. Adding RF output to an acousto-optic Q-switch diverts most of the incident laser light from the main beam path, degrading the Q of the laser cavity. This allows for high gain to be achieved. Coherent AOQS devices feature high modulation loss and low insertion loss.

By using silicon mirrors that combine excellent thermal stability and high reflectivity, a high-performance and cost-effective galvanometer scanner system can be built. The optics designed for printing are available in a wide range of sizes and shapes, optimized coatings for all wavelengths from 1.0 μm to 12.0 μm, and additionally offered with dual-wavelength coatings that reflect infrared lasers and visible alignment beams.

Introducing the latest lasers for thermal processing, microfabrication, continuous wave lasers, and research and development.

Thermal grade CVD diamond is an advanced polycrystalline diamond material that achieves an extremely high thermal conductivity (up to 2,200 W/m·K). It combines excellent thermal diffusivity and mechanical stability, making it suitable for applications that require stringent thermal management, such as high-power lasers, power devices, and infrared optical systems. It can accommodate diameters of up to 145 mm and is flexible in high-precision polishing and custom processing. Due to its high optical transparency, it can be widely applied from cooling substrates to optical windows. It is a next-generation high-performance material that controls heat and maximizes performance.