Propaganda of voice of China: in the era of big data, every click of the keyboard becomes part of the vast amount of information on the Internet.

I've been hearing this phrase over and over again on the radio lately. Today we're talking about the coming of big data. 10G to 400G!

In the past few years, 10GB data centers have been all the rage, making Ethernet an unassailable force. However, in just a few years, Internet & has promoted the rapid development of cloud computisng, big data, Internet of things, etc., and the demand for bandwidth is getting higher and higher. Therefore, conventional low-rate upgrading is an inevitable trend. The most popular Ethernet upgrade path is 10G-40G-100G-200G-400G; However, according to a new research report, the latest server upgrade path will be 10G-25G-100G-200G, or even 400G in the future. Times change so fast! You'll be left behind if you're not careful!

The rapid development of data center, the increase of user demand; In order to meet the needs of users, the transmission rate of optical communication also increases, from 10G and 25G to 100G and 200G today.200G is a new breakthrough for the era when 100G comes out on top. The 200G rate product now has 200G optical module and 200G AOC active fiber optic cable. Today let's learn together!

AOC active fiber optic cable composition

As we know, active optical fiber cable is consists of integrated optoelectronic devices used in the data center, the high performance computer, such as mass storage devices for high rate, high reliability interconnect transmission equipment, it is usually to meet industry standard electrical interface, through internal electric light - electric conversion, using the advantages of fiber optic cable for data transmission.

AOC active cable structure

Active cable = two optical transceiver & optical cable jumper (AOC active cable development is currently the main AOC active cable is expensive, or there is no copper cable what!

AOC active cable can be understood as a system composed of two optical transceivers and optical cable jumper.

Unlimited high speed cable (The cable ends are directly connected and transmitted through copper wires)

Active high-speed cable (Connectors contain electronic devices that are transmitted via copper wires)

Active fiber optic cable AOC (The connector contains optoelectronic devices and is transmitted through optical fiber)

Using the interpretation of 200GAOC Shared by Feiyang communications chaser, let's learn its brief principle. The data transmission rate of the optical transceiver of 200GAOC is 200Gb/s, and it is an eight-channel, plug and unplug, parallel, fiber optic QSFP dual density for 2x100G Ethernet applications. The optical module is a high performance module for short distance multi-channel data communication and interconnection applications. It integrates eight data channels in each direction with a bandwidth of 8x25.78125Gbps; Each channel can use OM3 fiber transmission 70m or OM4 fiber transmission 100m; The modules are designed to use a multimode optical fiber system with a nominal wavelength of 850nm.

Principle of active optical cable

In fact, the principle of AOC is not much different; The electrical signal is input through the A end, and converted into the optical signal of A specific wavelength through the electro-optical conversion device. The optical signal is modulated and coupled and then input into the transmission fiber optic cable. After the optical signal reaches the B end, the photoelectric detection device will detect the optical signal and then amplify, process and convert it to output the corresponding electrical signal.

Passive fiber optic cables have been gradually replaced in a wide range of transmission networks, and active fiber optic cables are a further improvement on passive fiber optic cables; It will certainly play an increasingly important role in end-to-end information interconnection.