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SPT Laser, an established high-tech manufacturer specializing in CO₂ laser sources and precision optical components, has expanded its portfolio of CO₂ laser solutions with a new range of laser sources and precision infrared optical components, combining robust laser engineering with high-quality ZnSe optics. Featured on GoPhotonics, the latest additions include sealed CO₂ lasers, RF-excited laser systems, and a suite of mirrors, lenses, and protective windows - each optimized for operation at the 10.6 µm wavelength.

Designed for demanding environments, these products integrate stable output performance, thermal resilience, and high optical efficiency, making them well-suited for applications in material processing, medical systems, and research laboratories.

Compact N-30 CO₂ Laser for Reliable Continuous Operation

The N-30 sealed CO₂ laser is engineered for stable continuous-wave output with a typical power level around 30 W, making it ideal for compact industrial platforms. Its sealed-off design eliminates the need for gas refilling, significantly reducing maintenance while ensuring long operational lifetimes - often exceeding several thousand hours under standard operating conditions.

The laser supports efficient air cooling and delivers a high-quality TEM₀₀ beam profile, enabling precise material interaction. With stable power output and good mode quality, it is widely used in engraving, cutting thin materials, marking, and coding systems. Its compact footprint also allows easy integration into OEM laser machines and automated production lines.

F6i RF-Excited CO₂ Laser for Fast Modulation and Precision Control

The F6i RF-excited CO₂ laser offers enhanced performance through radio-frequency excitation, enabling fast modulation speeds and improved beam stability compared to traditional DC-excited lasers. This design supports precise control of output power, making it particularly effective for applications requiring rapid on/off switching and fine energy tuning.

With high electrical-to-optical efficiency and excellent beam quality, the F6i is optimized for precision micromachining, medical procedures, and high-resolution marking. Its sealed metal-ceramic construction enhances durability, while its compact, air-cooled architecture simplifies system integration and reduces operational complexity.

High-Durability Mirrors for Efficient Infrared Beam Steering

The SPT-M30-3.0 mirror is designed for high reflectivity at 10.6 µm, typically exceeding 99%, ensuring minimal power loss during beam delivery. Constructed using high-quality substrates such as silicon or molybdenum and coated with durable dielectric or metallic layers, these mirrors provide excellent thermal conductivity and resistance to high laser power.

Their robust design supports long-term operation in high-power CO₂ laser systems, including cutting and welding setups. The mirrors also feature precise flatness and surface quality, helping maintain beam integrity and alignment stability in demanding industrial environments.

ZnSe Focusing Lenses for High-Precision Laser Processing

The SL1-10.6-F75Z-48 lens is a zinc selenide (ZnSe) focusing lens specifically optimized for CO₂ laser wavelengths. With a focal length of 75 mm and a diameter suitable for standard beam delivery systems, it enables tight focusing for high-resolution material processing.

ZnSe’s high transmission (>99% at 10.6 µm with anti-reflective coatings) and low absorption reduce thermal lensing effects, ensuring consistent beam quality even under high-power operation. The lens is polished to high surface accuracy and coated for durability, making it suitable for precision engraving, drilling, and fine cutting applications.

Infrared Windows for Protection with Minimal Optical Loss

The WZ-88-3 optical window is designed to provide high transmission in the infrared spectrum while protecting internal optical components from dust, debris, and environmental exposure. Manufactured from materials such as ZnSe or other IR-compatible substrates, it offers excellent optical clarity and low absorption at CO₂ laser wavelengths.

With high surface quality and optional anti-reflective coatings, the window minimizes insertion loss while maintaining beam quality. Its robust mechanical and thermal properties make it suitable for use in sealed laser systems, beam delivery modules, and harsh industrial environments.

Integrated Solutions for High-Performance CO₂ Laser Systems

By combining advanced CO₂ laser sources with precision-engineered infrared optics, SPT Laser Technology delivers a cohesive ecosystem for high-performance laser systems. The synergy between stable laser generation and efficient optical components ensures improved system efficiency, reduced downtime, and enhanced processing accuracy.

These solutions are widely applicable across industries, including automotive manufacturing, electronics fabrication, medical device production, and scientific research. From high-speed marking and cutting to delicate micromachining and laboratory experimentation, the expanded portfolio enables users to achieve greater control and reliability in their laser-based processes.

Click here to learn more about optical windows.