QSFP-DD

The Technologies of Next-Generation Optical Transceivers – PAM4 and 64QAM

The shift to cloud services and virtualized networks has put the data center in the middle of our world and meant that connectivity within data centers and between data centers has a huge impact on the delivery of business and personal services. Hyperscale data centers are being installed across the world and these all need connecting. To meet this demand,…

What is PAM4 technology

PAM4 — The High-Speed Signal Interconnection Technology of Next-Generation Data Center

What Is PAM4? PAM4 (4-Level Pulse Amplitude Modulation) is one of PAM modulation technologies that uses 4 different signal levels for signal transmission. Each symbol period can represent 2 bits of logic information (0, 1, 2, 3), that is, four levels per unit time. In the data center and short-distance optical fiber transmission, the modulation scheme of NRZ is still…

working principle of 50GE PAM4 optical module

What is PAM4 Encoding Technology?

With the PAM4 encoding technology, the amount of information transmitted on 50G PAM4-based optical transceivers within each sampling cycle doubles. A 25G optical component can be used to achieve a 50Gbps transmission rate, reducing the costs of optical transceivers. 50G PAM4 applies to multiple scenarios, such as single-lane 50GE PAM4 optical transceivers, 4-lane 200GE optical transceivers, and 8-lane 400GE optical…

optoelectronics fiber optic instruments

200G and 400G: Which One Will Be the Rising Star in the Market after 100G optics?

With the rapid development of optical communication and Internet in recent years, users’ demand for the network has also surged, which leads to the rapid growth of Telecom backbone traffic at a speed of 50% to 80% per year. In order to follow the development trend of 10G-40G-100G/10G-25G-100G in the optical communication market, 100G optical module arises with the trend…

the interconnection of the 100G QSFP28 LR4 module connected with MTP to LC breakout and MTP cassette to achieve a total 400G data rate transmission.

QSFP28 Transceiver With MTP or LC Duplex Cables

Nowadays, QSFP28 transceiver is the mainstream of 100G optics market. So as to meet different 100G deployment needs, QSFP28 modules usually come in several standards such as QSFP28 PSM4, QSFP28 CWDM4, IR4, SR4, and LR4, etc. Compared with CXP and CFP 100G optical transceivers, QSFP28 optics are the smallest form factors that provide a high-density and high-speed solution for 100G…