The Application of 25G/100G Active Optical Cable (AOC) in Data Center

---

 

The increasing demand for data
transmission is driving the development of the entire optical communications
market. Active optical cable AOC is a necessity for data transmission and can
meet the needs of high-density and high-bandwidth applications. It has many
advantages such as high transmission rate, long transmission distance, low
energy consumption, and convenient use. It can help communication equipment
enjoy the huge advantages of optical transmission. It is an ideal transmission
cable for data centers, consumer electronics and other fields.

 

fiber-mart.com has been deeply involved
in the field of multi-mode VCSEL optical modules and active optical cable AOC
for many years. Among them, the data center AOC multi-mode product line has
transitioned from the first generation of 10G/40G SR AOC to the mainstream
application of 25G/100g SR AOC in the current market. Based on the purpose of
market segmentation, Gigalight has defined and developed a series of
differentiated 100G AOC products. Including standard SR4 AOC version,
overclocking low-cost AOC lite version, eSR4 AOC version supporting 25GE zero
error, eSR4+ AOC supporting dual rate, etc., which can provide customers with
the best commercial choice.

 

The quasi-100G QSFP28 AOC SR4 standard
version 100G
QSFP28 AOC integrates four data channels in each direction with a
bandwidth of 104 Gbps, which is used for short-distance multi-channel data
communication and interconnection applications. Each channel uses OM4 to
transmit a distance of 100 meters. The module uses a multimode optical fiber
system with a nominal wavelength of 850nm. The electrical interface uses 38
contact edge type connectors, and the optical interface uses 12 optical fiber
MTP (MPO) connectors. VCSEL laser is used to provide reliable long life, high
performance and consistent service. At the same time, it can optionally support
an industrial temperature range.

 

Overclocking low-cost AOC lite data
center emphasizes low cost. Overclocking design is a technology developed in
the past two years due to low-cost competition of 5G optical modules. The
purpose is to design and match 10G optical components to work at 25G, thereby
reducing the overall machine cost. Overclocking technology must meet the
following preset conditions:

 

* Industry Agreement Standard

 

* General reliability standards

 

* Service life of the equipment

 

Active Optical Cable AOC’s transmission
distance is relatively short, and the working environment is relatively good,
which just provides a stage for AOC overclocking applications. Otherwise, 100G
optical modules and 100G
Active Optical Cable AOC are no different under cost measurement.
Overclocking design can show the difference and application advantages of 100G
AOC Active Optical Cable. However, under the above conditions, the overclocked
optical module will be slightly inferior to the non-overclocked version
(standard version) in function.