The LBTEK Slit-Adjustable Fiber Optic Attenuator can be used for controlling the luminous flux between fiber-coupled output beams. The slit-adjustable fiber optic attenuator is equipped with an LB74UV fiber collimating lens at each end, with an adjustable slit in the middle to regulate the luminous flux. Its operating principle involves the incident light being collimated after passing through the first lens, then adjusted in luminous flux via the adjustable slit, and finally coupled into the output fiber through the second collimating lens. The fiber optic attenuator connects to the fiber via an SMA905 connector, ensuring consistent attenuation for light within the operating wavelength range of 185–2500 nm. After connecting the fiber, the distance between the fiber end face and the lens can be adjusted using the set screw, with a maximum adjustable travel of 5 mm. The attenuation level is controlled via a mechanical adjustment wheel, allowing for adjustable light attenuation from 0% to 100%. Once the target luminous flux is achieved, it can be locked in place using the side M3 plastic thumb screw.

LBTEK provides fiber collimating lenses that enable collimated beam output. The lenses are made of UV fused silica with a focal length of 10 mm and operate at wavelengths of 185-2500 nm, suitable for SMA905 connector fibers. After connecting the fiber, the distance between the fiber end face and the lens can be adjusted using the set screw, with a maximum adjustable travel of 5 mm. After adjustment by the fiber collimating lens, the beam divergence angle does not exceed 2°.

LBTEK's Diffuse Reflectance Reference Plates offer extensive applicability and can be integrated with fiber optic spectrometers and light sources to form a system for measuring the reflectance of various samples, such as ceramics, frosted glass, plastics, and other rough-surfaced materials. The LBSTD-WS is a standard diffuse reflectance reference designed for reflectance measurements. It is made of high-quality imported PTFE material and provides over 93% reflectance across a broad spectral range from ultraviolet to visible to near-infrared (200-2500 nm), making it an essential accessory for spectral measurements. The diffuse reflectance reference plate features an anodized aluminum housing, ensuring excellent waterproof performance and high stability.

LBTEK Cuvettes are made from UV-grade fused silica glass using optical cementing technology. The cuvettes come in two options: LBUCT-100T with two optical windows and LBUCT-100F with four optical windows. Both feature a standard 12.5 mm square external profile, with a 10 mm optical path length and 100 μl capacity. Each pair is provided with PTFE caps to prevent dust and other particles while offering certain sealing properties.