400G optical module refers to optical module products with a transmission rate of 400Gbps. At present, the mainstream packaging type is QSFP-DD (Quad Small Form-factor Pluggable Double Density), which is a high-speed optical module interface specification, an upgraded version of the QSFP interface, and supports 400G high-speed transmission. Using optical fiber as the signal transmission medium, digital signals are converted into optical signals and transmitted in optical fibers.
1)Supports 425Gb/s bit rate
2)Hot Pluggable QSFP-DD form factor
3)Support Digital Monitoring interface
4)Compliant to QSFP-DD Rev 4.0
5)SFF-8636 Management Interface
6)SFF-8679: General Electrical
7)IEEE 802.3cd: Physical Layer Specifications and Management Parameters
8)All-metal housing for superior EMI performance
9)Meet ESD requirements, resist 8KV direct contact voltage
10)RoHS-10 compliant and lead-free
11)Single +3.3V power supply
12)Operation Temperature Range 0~70°C
| Description | Data Rate | Reach | TX | RX | Output Power | Sensitivity |
| 400G QSFP-DD SR8 | 425Gbps | 100M | 850nm VCSEL | PIN | -6.5~+4dBm | ≦-7.9dBm |
| 400G QSFP-DD DR4 | 425Gbps | 500M | 1310nm EML | PIN | -2.4~+4dBm | ≦-6.4dBm |
| 400G QSFP-DD FR4 | 425Gbps | 2KM | 1310nm EML | PIN | -3.3~+3.5dBm | ≦-7.3dBm |
| 400G QSFP-DD LR4 | 425Gbps | 10KM | 1310nm EML | PIN | -2.8~+4dBm | ≦-9.1dBm |
| 400G QSFP-DD ER4 | 425Gbps | 40KM | 1310nm EML | APD | 0.4~+6.5dBm | ≦-16.5dBm |
| 400G QSFP-DD ER8 | 425Gbps | 40KM | 1310nm EML | APD | -0.6~5.+6dBm | ≦-16.1dBm |