Structure and application of active optical cable

05-12-2019

Active optical cable is a new type of transmission optical cable. It needs external energy during communication to convert electrical signals into optical signals, or communication cables that convert optical signals into electrical signals. The optical transceivers at both ends of the optical cable provide photoelectricity. Conversion and optical transmission functions. The following is the structure and application of active optical cables for everyone, I hope to help everyone.


Composition structure of active optical cable


The main components of an active optical cable are divided into two parts: the optical path and the circuit. The optical path includes the lens and FA for converting the angle of the optical path. The circuit includes the PCB, substrate, VCSEL chip, VCSEL driver chip, PD chip, and TIA chip. As a main transmission medium for high-performance computers and data centers, active optical cables ensure the stability of transportation and application flexibility, which is more common in high-density applications.


At one end of the active optical cable, an electrical signal is input to the data, and the electrical signal is converted into an optical signal of a specific wavelength by a photoelectric conversion device. The optical signal is modulated and coupled and input into the transmission optical cable. After the optical signal reaches the other end, the photoelectric detection device The optical signals are detected, amplified, processed, and then the corresponding electrical signals are output. The reverse transmission principle is the same.

active optical cable

Application of active optical cable


In teaching centers and laboratories, active optical cables connect multiple machines to the host, which not only ensures high-speed data transmission, but also implements a secure network system.


In data centers and cloud computing systems, in order to meet the requirements of higher bandwidth and lower power, the 10G SFP+ and 40G QSFP+ in active optical cables can be well connected to switches or routers with high-speed optical communication ports. In the common digital signage, the active optical cable also plays an important role, which can support 1080p resolution in the outdoor HDMI environment. Not only that, active optical cables are also used in outdoor large interactive games.


The above is an introduction to the structure and application of active optical cables. I hope that everyone will be helpful after understanding the composition and application of active optical cables.

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