In the context of the continuous progress of Internet technology and the increasing demand for network transmission speed, 400G FR4 optical module came into being and has become the key to meet the needs of high-speed network transmission in the future. This article introduces the features, advantages and application scenarios of 400G FR4 optical module in detail.

I. Working principle of the 400G QSFP-DD FR4 optical module

The 400G QSFP-DD FR4 optical module is an optical transceiver module designed for 2km optical communication applications and complies with the 100G Lambda MSA standard. The module can convert 8 53.125Gb/s electrical signals into 4 106.25Gb/s optical signals, and reuse them into one optical signal for 425Gb/s optical transmission.

Similarly, it can optically demultiplexed 425Gb/s input to a 4-channel signal, converting it to 8-channel output electronic data at the receiving end. It is designed to meet the harshest external operating conditions, including temperature, humidity and electromagnetic interference. The module uses a duplex LC interface that provides a very high level of functionality and functional integration, accessible via a two-wire serial interface.

II. Advantages and application scenarios of the 400G QSFP-DD FR4 optical module

Excellent bandwidth density: The 400G QSFP-DD FR4 optical module has a higher bandwidth density, which can achieve a larger capacity of data transmission in a limited space, providing an efficient and stable data transmission solution for the data center.

Low-power design: In communication networks, with the continuous expansion of mobile communications, broadband access and other services, the demand for high-speed data transmission is also increasing. The 400G QSFP-DD FR4 optical module uses an advanced low-power design, effectively reducing energy consumption, in line with the trend of sustainable development.

Strong compatibility: The 400G QSFP-DD FR4 optical module adopts a common interface standard and can be compatible with existing optical fiber communication devices, achieving smooth upgrade. The 400G QSFP-DD FR4 optical module provides a stable and reliable network connection for daily business operations.

As a high-speed data transmission module, the 400G QSFP-DD FR4 optical module has key features such as excellent bandwidth density and low power consumption design, and will play an important role in data center networks, communication networks, enterprise networks and other fields. As a professional module manufacturer, we can provide 400G QSFP-DD FR4 optical module, welcome to consult and understand! With the continuous progress and innovation of technology, we can expect that it will make greater contributions to the development of the digital age in the future.

The difficulty of developing optical modules is mainly due to high-speed transmission and high-frequency operation requirements, but the difficulties can be overcome by solving key problems in materials, structure, signal and manufacturing.

First, the challenges brought by high-speed transmission and high-frequency operation requirements

Optical module is an integrated module that integrates optoelectronic devices, packaging materials, interface circuits and high-speed packaging technology. Its main function is to convert optical signals into electrical signals and transmit them. However, in terms of high-speed transmission and high-frequency operation, optical modules are facing greater challenges. Here are the specific difficulties:

1. Signal interference and dissipation

When the optical module transmits at high speed, it will cause signal interference and signal attenuation, which will lead to energy loss and affect the signal transmission quality.

2. Structural stability problem

For double-sided cooling optical modules, thermal stress caused by inconsistent coefficient of thermal expansion can easily lead to device failure.

3. Manufacturing accuracy requirements

Because the manufacturing of optical modules is difficult and the manufacturing accuracy is high, if the process is not rigorous and the accuracy is not enough, it is easy to lead to signal distortion.

Second, the solution

For the difficulties in the development of optical modules, the following are the corresponding solutions:

1. Materials

In the optical module, high conductivity resin with low dielectric constant and low loss Angle tangent value can be used to improve the signal transmission rate and reduce signal interference.

2. Structure

The coupling of high-power RF signals is minimized, and composite materials are used to improve the cooling effect, thus improving the stability of the device.

3. Signal

In the aspect of signal transmission, forward error correction coding and adaptive equalization technology can be used to enhance the anti-interference ability of the optical module.

4. Manufacturing

In terms of manufacturing, high-precision lithography technology and computer simulation technology can be used to control the process parameters to improve the manufacturing accuracy of optical modules. At the same time, it is also necessary to strengthen quality control to ensure that each optical module can meet the design requirements.

【 Conclusion 】

Although the research and development of optical modules is difficult, by solving key problems such as materials, structure, signal and manufacturing, difficulties can be overcome and the advantages of high reliability, high speed and low overhead of optical modules can be achieved, and the optical modules can be promoted to develop in the direction of higher speed and more functions.

C-light's QSFP-DD FR4 optical transceiver can be used in environment under -20℃~85℃. Its cutting-edge design, superior quality, and exceptional performance make it a highly sought-after solution for high-speed data transmission requirements. The QSFP-DD FR4 module not only delivers blazing-fast data transfer speeds but also ensures reliable and stable connectivity, thereby meeting the demanding needs of modern networking environments. With its advanced features and robust construction, C-light's QSFP-DD FR4 sets a new standard for optical transceivers, earning praise for its reliability, efficiency, and ability to seamlessly meet the ever-evolving demands of the industry.