The 200G QSFP-DD PSM8 utilizes NRZ encoding rules and employs parallel single-mode 8 lanes, also known as parallel single-mode technology, in its optical module. Whether it's a 40G, 100G, or 200G optical module, the cost advantage of PSM technology over wavelength division multiplexing technology is evident.

The application of 200G optical modules in data centers raises the bar for manufacturers in terms of cost control. The demand for cable laying in the data center field makes customers more cautious in selecting optical modules. The advantages of the 200G QSFP-DD PSM8 optical module in terms of speed, transmission distance, and other aspects can meet the needs of customers.

The NRZ modulation mode of the 200G QSFP-DD PSM8 perfectly achieves transmission at a 200G rate; existing solutions enable the 200G QSFP-DD PSM8 to achieve long-distance transmission of up to 10km without the need for relay equipment cable laying in the data center. Power consumption has always been one of the most concerning metrics in data centers, and the power consumption of the 200G QSFP-DD PSM8 can be less than 6W, saving electricity costs and reducing the burden on the cooling system. The cost of the design scheme of the 200G QSFP-DD PSM8 module itself makes mass usage possible.

Specific Parameters of 200G QSFP-DD PSM8 Optical Module

        ▶Hot-pluggable QSFP-DD package

        ▶Compliant with QSFP-DD MSA and 100G PSM4 MSA standards

        ▶Compatible with InfiniBand 8x DDR/EDR standards

        ▶8-channel 25Gb/s 1310nm DML transmitter and PIN receiver

        ▶Built-in CDR circuitry in both receiver and transmitter channels

        ▶Maximum transmission distance via G.652 single-mode fiber up to 2km/10km (with FEC enabled)

        ▶Power consumption less than 6W (2km) or 6.5W (10km)

        ▶Commercial-grade operating temperature range from 0 to 70 degrees Celsius

Optical module manufacturers are continually improving their offerings based on NRZ and PAM4 200G optical modules, and we believe they will soon provide customers with more options to meet their needs.

Additional Learning Hub Resources

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What is the maximum data rate for QSFP transceiver? 

What are the types of QSFP transceivers 

What is the biggest difference between SFP, SFP+, SFP28, QSFP+, QSFP28, QSFP-DD, and OSFP?