Overview of HDMI2.1 application optical fiber cable

The HDMI cables we manufacture have one sole mission within the entire audiovisual system: to transmit all necessary information flawlessly and completely. The greater the bandwidth required and the longer the distance, the higher the demands on the cable for resistance to attenuation and interference. For short distances, high-quality copper HDMI cables can handle ultra-high-speed transmission. For HDMI 2.0 cables in the Cat2 era, lengths up to 15 meters can  use passive cables. However, in the HDMI 2.1 Cat.3 era, once the length exceeds 5 meters, it's recommended to add power to drive signal transmission. Pure copper cables also can't meet the demands beyond 5 meters, prompting the recommendation of using Active Optical Cables (AOC). With optical fibers, transmission is nearly lossless and free from electromagnetic interference. Over the past three years, the supply chain and production enterprises for fiber optic HDMI have rapidly developed, especially with major capital investments from companies like Elf and Xinliansheng. Currently, fiber optic HDMI 2.1 cables are widely used in scenarios requiring high-definition video display output and large-scale wiring connections, such as home theater systems, remote information dissemination systems, broadcast television control systems, public safety HD surveillance systems, HD video conferencing systems, multimedia systems, large-scale medical imaging systems, industrial automation systems, etc. Opting for a fiber optic HDMI 2.1 cable is also recommended for enhancing gaming refresh rates and immersion. 

Traditional HDMI copper cables are limited by signal attenuation and struggle to meet the high-bandwidth transmission requirements of 18Gbps. The advantages of fiber optic HDMI cables lie in their high transmission bandwidth, large communication capacity, strong insulation, and resistance to electromagnetic interference, allowing you to experience stunning visuals in 3D and 4K gaming. For gamers, there's no need to worry about bandwidth issues, as they can enjoy smooth and colorful gaming visuals across multiple levels. 

• Compact and lightweight

Fiber optic HDMI cables utilize fiber optic cores, while conventional HDMI cables use copper cores. The difference in core material results in a thinner, softer cable body for fiber optic HDMI, making it ideal for extensive installation and offering superior resistance to bending and impact. With a maximum outer diameter of only 4.8mm, it's also suitable for use in confined spaces.

• Lossless transmission over long distances

Fiber optic HDMI cables come with built-in opto electronic module chips, enabling optical signal transmission. Signal attenuation over long distances is negligible, achieving true low-loss transmission over distances of up to 300 meters, ensuring the authenticity of 4K images and high-fidelity audio. In contrast, conventional HDMI cables typically lack chip standardization, resulting in higher signal loss.

• Immunity to external electromagnetic interference

Traditional HDMI cables transmit electrical signals through copper cores, making them susceptible to external electromagnetic interference, leading to dropped frames in videos and poor signal-to-noise ratio in audio. Fiber optic HDMI cables transmit optical signals through fiber optics, rendering them immune to external electromagnetic interference, ensuring lossless transmission—an ideal choice for gaming enthusiasts and professionals in demanding industries.

4、18Gbps ultra-high-speed bandwidth

Traditional HDMI copper cables struggle with signal attenuation, making it difficult to meet the high-bandwidth transmission requirements of 18Gbps. Fiber optic HDMI cables excel in high transmission bandwidth, large communication capacity, strong insulation, and resistance to electromagnetic interference, enabling you to experience stunning visuals in 3D and 4K gaming. Gamers need not worry about bandwidth issues and can fully immerse themselves in multi-layered, smooth, and colorful gaming visuals.