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200G AOC Active Optical Cable Overview, Advantages and Principles

Time:2022-7-11Posted:Shenzhen Huazhaotong Technology Co., Ltd

With the rapid development of data centers, user demands are increasing. In order to meet the needs of users, the transmission rate of optical communication transmission has also increased and developed, from the previous 10G and 25G to today\\\'s 100G and 200G. Facing the high-speed, high-density, low-cost, and low-power requirements of short-distance data centers in optical interconnect products, AOC active optical cables provide excellent solutions.

200G AOC Introduction

①200G AOC has two kinds of QSFP28-DD AOC and QSFP56 AOC, the wavelength is 850nm, the QSFP56 package has four transmit and receive ports, but the transmission rate of each channel is up to 56Gbps, and the modulation method is PAM4. The QSFP28-DD package has eight transmit and receive ports, the transmission rate of each channel is 28Gbps, the modulation method is NRZ, and 200G AOC is applied to 200G Ethernet with a transmission distance of 1-100 meters.

②200G AOC to 2x 100G AOC, one end is connected to a 200G optical module, and one end is connected to two 100G optical modules, the maximum transmission rate is 212.5Gbps. The power consumption of 200G optical module is less than 4W, and the power consumption of 100G optical module is less than 2.5W. Mainly used in data center 200G to 2-way 100G Ethernet branch link.

③200G AOC to 4x 50G AOC adopts 8-channel full-duplex active optical cable, one end is connected to 1 200G optical module, and the other is connected to 4 50G modules, the maximum rate is up to 206.25Gbps. The power consumption of 200G is less than 4W, and the maximum power consumption of each 50G module is less than 1.5W. Mainly used in data center 200G to 4-way 50G Ethernet branch link.

200G AOC working principle

The working principle of AOC is not much different. The electrical signal is input through the A terminal, and the electrical signal is converted into an optical signal with a specific wavelength through the electrical-optical conversion device. After detection, it is amplified, processed and converted to output the corresponding electrical signal.

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