In Yingfeng, blue connector and green connector represent UPC connector and APC connector respectively
These two types of connectors are two common types of fiber optic connectors. They differ in connection methods and application areas.
APC connectors: APC connectors have an inclined connection surface, usually at an angle of 8 degrees. This angled design allows light to be refracted between the connectors, reducing reflection and return losses.APC connectors are widely used in single-mode fiber optic systems, especially in applications that require low reflection loss and a highly stable connection, such as fiber optic networks and fiber optic sensor systems for transmitting high-speed data.
UPC Connectors: UPC connectors have a flat connection surface with no tilt. This design provides a wider contact area, allowing for better alignment of light between connectors and reduced reflection loss.UPC connectors are commonly used in multimode fiber optic systems and some single-mode fiber optic systems such as LAN (Local Area Network) connections, fiber optic distributed sensing systems, etc.
APC connectors and UPC connectors differ in the design of the connection surface and reflective properties.APC connectors are suitable for single-mode fiber applications requiring very low reflective loss, while UPC connectors are suitable for multimode fiber and some single-mode fiber applications. When selecting a connector type, the most appropriate connector type needs to be determined based on the specific application requirements and fiber type.
