Working principle:

Based on the principle of total reflection of light, the laser carrying information is constantly reflected in the fiber core and transmitted from one end to the other. Since the refractive index of the fiber core is higher than that of the cladding, when the light hits the interface between the core and the cladding, as long as the incident angle is greater than the critical angle, the light will be totally reflected, and thus be bound in the fiber core for propagation, thus achieving effective transmission of the optical signal.

Performance characteristics:

1.Strong anti-electromagnetic interference ability: 

There are a variety of electronic devices on the aircraft, which will produce a complex electromagnetic environment, while the plastic optical fiber jumper is not subject to electromagnetic interference, which can ensure the stable transmission of communication signals, avoid signal distortion and increase in bit error rate, and ensure communication quality.

2. Good flexibility: 

The interior space of the aircraft is compact, and the laying of the line requires a certain degree of curvature. The loopback plastic optical fiber jumper has good flexibility and can work normally at a small bending radius, which is convenient for laying and installation in the complex space inside the aircraft, and can adapt to the vibration and deformation of the aircraft during flight.

3. High safety: 

The energy is low, and there will be no dangers such as electric sparks, which is suitable for use in aviation, an environment with extremely high safety requirements. At the same time, data transmission through plastic optical fiber is difficult to be eavesdropped, which is conducive to ensuring the security and confidentiality of aircraft communications.

Application scenarios:

1.Connecting internal aircraft communication equipment:

It can be used to connect communication radio stations, data link systems, onboard computers and other equipment on the aircraft to achieve high-speed data transmission and interaction between devices, such as transmitting control instructions in the cockpit to related systems, or transmitting data collected by sensors to processing units.

2. Avionics system interconnection:

 In avionics systems, such as flight control systems, navigation systems, etc., loopback plastic optical fiber jumpers can connect different modules to build a high-speed and stable internal communication network, ensuring that data can be transmitted in real time and accurately between systems, ensuring safe flight and precise control of aircraft.

3. Cabin entertainment system connection:

 It is used to connect entertainment servers, display screens, audio equipment, etc. in the cabin to provide passengers with high-quality audio, video and other entertainment content, achieve high-speed data transmission, and ensure the smoothness of the playback picture and the clarity of the audio.