There are several types of fiber optic cables

　　There are various types of fiber optic cables, and according to different classification criteria, there can be the following main types:

　　Classification by material

　　Quartz fiber: It is currently the most widely used fiber cable material, mainly composed of silicon dioxide (SiO2). Quartz fiber has excellent tranSMission performance, such as low loss, high bandwidth, etc., and is suitable for long-distance, high-speed optical signal transmission.

　　Plastic optical fiber: using plastic as the substrate, it has the advantages of low cost and easy processing. However, its transmission performance is relatively poor, the loss is large, and the bandwidth is small. It is suitable for short-distance and low-speed optical signal transmission, such as short-distance computer network links and ship communication.

　　Classification by transmission mode

　　Single-mode fiber (SMF): supports only one mode of optical signal transmission, suitable for long-distance, high-speed communication. The core diameter of single-mode fiber is small, generally about 9 microns (also said to be 8.3 microns). Common single-mode fiber models include OS2, G.652D, G.655, etc.

　　Multimode fiber (MMF): It can support multiple modes of optical signal transmission, suitable for short-distance, low-cost communication. The core diameter of multimode fiber is larger, generally 50 or 62.5 microns. Common multimode fiber models include OM3, OM4, etc.

　　III. Classification by application scenario

　　Communication fiber: It is mainly used in communication fields such as telephone and Internet to realize the transmission of voice, data and other information. Communication fiber has the characteristics of high speed, large capacity and low loss, which can meet the needs of modern communication.

　　Data transmission fiber: mainly used in computers, data centers and other fields to achieve high-speed data transmission. Data transmission fiber has the advantages of large bandwidth and fast transmission speed, which can meet the needs of big data, cloud computing and other applications.

　　Audio & video transmission fiber: Mainly used in TV, movies and other fields to achieve high-quality audio & video signal transmission. Audio & video transmission fiber has the characteristics of wide bandwidth and small signal loss, which can provide a realistic audio & video experience.

　　IV. Classification by other characteristics

　　Armored optical fiber: suitable for outdoor and industrial environments, with enhanced mechanical strength and protective properties.

　　Indoor fiber optics: specifically designed for use in indoor environments such as data centers and offices, with smaller size and greater flexibility.

　　Pre-terminated fiber optic: Connected connectors, plug and play for easy installation and maintenance.

　　In addition, there are also some special types of fiber optic cables, such as spectral fibers (with different refractive indices for transmitting light of different wavelengths), distributed fiber optic sensing (suitable for long-distance detection of temperature, pressure, displacement, and vibration), optical millimeter-wave fibers (which can convert high-speed wireless data into optical signals), etc. These fiber optic cables have unique application value in specific fields.

　　In summary, there are various types of fiber optic cables, and each type has its own specific application scenarios and advantages. When selecting fiber optic cables, it is necessary to choose the appropriate type according to specific transmission requirements and application scenarios.