The core of LEONI's glass fibers for infrared (IR) applications is crafted from pure fused silica glass, ensuring a low hydroxyl (OH) content and a consistent refractive index across the entire diameter. These fibers are specifically designed to operate within a wavelength range of 400 nm to 2400 nm, covering both visible (VIS) and infrared (IR) spectrums. This makes them an ideal choice for a variety of applications that require precision and reliability.

The fibers are covered with a protective coating, which can be made from acrylate, silicone, or polyimide, depending on the specific requirements of the application. These coatings provide essential protection and durability, allowing the fibers to perform optimally under different environmental conditions. The multimode fibers are integral to various industries, playing a crucial role in optical data transmission, sensor technology, spectroscopy, medical technology, and laser applications.

LEONI offers step-index multimode fibers with a range of core diameters from 40 μm to 200 μm, ensuring flexibility for diverse application needs. The fibers are available with different coatings and jackets, such as acrylate with a Nylon® jacket or silicone with a Tefzel® jacket, each offering unique advantages in terms of temperature resistance and mechanical protection. These design choices ensure that the fibers can withstand temperature ranges from as low as -190 °C to as high as 385 °C, catering to both standard and extreme operating environments.

For applications requiring additional protection, fibers with jackets are available in a variety of colors, including black, blue, transparent, yellow, red, and white. This color-coding can be particularly beneficial for organizational purposes or when integrating the fibers into existing systems. LEONI's commitment to quality and innovation is evident in their use of advanced materials and coatings, such as ORMOCER®, which is suitable for continuous use at temperatures up to 200 °C, further enhancing the versatility and reliability of these optical fibers.