Laser Light Cables
High-power fiber-optic cables must meet the most demanding requirements in order to achieve more power, higher efficiency, and shorter cycle times in laser materials processing systems. The key to meeting those demands is beam quality preservation, high transmission, and light weight. These requirements are the basis for Coherent’s laser light cables and make them the cable of choice for 1-micron laser sources including fiber lasers, disc lasers, and diode lasers.
Coherent laser light cables guide the light to the processing head with almost no power or beam quality loss and are able to withstand unwanted radiation. Furthermore, they are robust under high acceleration, enabling maximum process speed and precision for highly dynamic applications.
Our advanced laser light cable connectors are ideal for diverse industrial applications. The QBH compatible connector LLK-Q meets the demanding requirements for use in cutting machines. The LLK-Auto compatible connector LLK-Auto-C is used as an automotive standard-compliant variant for many applications and laser types.
The laser light cable portfolio also includes our proven connectors LLK-Auto-AR, LLK-Auto-NR, and LLK-HP.
Optical characteristics
Focusing on multimode beam quality, Coherent’s laser light cables come with core diameters from 30 μm to 2,000 μm. Due to their innovative and compact design, they offer protection against back-reflection and misalignment of the laser source. For maximum laser efficiency, all AR connector types are equipped with antireflection-coated end caps. These high-performance coatings are designed for high beam intensities and reduce Fresnel losses at the fiber tip to a minimum. Specific optical materials and splice technologies also contribute to best beam quality preservation, high transmission, and hence a more efficient laser process.
Mechanical characteristics
Micrometer precision in every detail offers plug-and-play capability through pre-alignment. This permits replacement without the need to realign. Flexible protective hoses guarantee process stability over millions of operating cycles.
Electric characteristics
A monitoring system for fiber breakage, temperature, and plug-in control is a standard feature for Coherent’s laser light cables. Integrated scattered-light sensors on the input and/or output connector side are available as an option.