E-link China Technology Co.,LTD
E-link China Technology Co.,Ltd. Professional Fiber Optical Communication and CCTV Security Transmission Product Manufacturer
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Fiber Optic Module 400GBASE-DR4 QSFP28 1310nm 500m Transceiver Single Mode Fiber
400G QSFP Transceiver Advantages
► Compliant with QSFP-DD CMIS Rev 4.0
► Supports 3dB channel insertion loss
► Two wire serial Interface with digital diagnostic monitoring
►Compliant with QSFP-DD MSA HW Rev 5.1
► Type 2 housing with MPO-12 connector
Transmitter Optical Specifications
| Parameter | Symbol | Min. | Typical | Max. | Unit | Notes |
| Wavelength | λC | 1304.5 | 1311 | 1317.5 | nm | |
| Side Mode Suppression Ratio | SMSR | 30 | - | - | dB | |
| Average Launch Power, each lane | AOPL | -2.9 | - | 4.0 | dBm | 1 |
| Outer Optical Modulation Amplitude (OMAouter), each lane | TOMA | -0.8 | - | 4.2 | dBm | 2 |
| Launch Power in OMAouter minus TDECQ, each lane | TOMA | -2.2 | - | - | dBm | |
| Transmitter and Dispersion Eye Closure for PAM4 (TDECQ), each lane | TDECQ | - | - | 3.4 | dB | |
| TDECQ – 10log10(Ceq) | - | - | - | 3.4 | dB | |
| Average Launch Power of OFF Transmitter, each lane | TOFF | - | - | -15 | dBm | |
| Extinction Ratio, each lane | ER | 3.5 | - | - | dB | |
| Transmitter transition time | - | - | - | 17 | ps | |
| RIN21.4OMA | RIN | - | - | -136 | dB/Hz | |
| Optical Return Loss Tolerance | ORL | - | - | 21.4 | dB | |
| Transmitter Reflectance | TR | - | - | -26 | dB | 3 |
Receiver Optical Specifications
| Parameter | Symbol | Min. | Typical | Max. | Unit | Notes |
| Wavelength | λC | 1304.5 | 1311 | 1317.5 | nm | |
| Damage Threshold, each lane | AOPD | 5 | - | - | dBm | |
| Average Receive Power, each lane | AOPR | -5.9 | - | 4.0 | dBm | 1 |
| Receive Power (OMAouter), each lane | OMAR | - | - | 4.2 | dBm | |
| Receiver Reflectance | RR | - | - | -26 | dB | |
| Receiver Sensitivity (OMAouter), each lane | SOMA | - | - | -4.4 | dBm | 2 |
| Stressed Receiver Sensitivity (OMAouter), each lane | SRS | - | - | -1.9 | dBm | 3 |
| Conditions of stressed receiver sensitivity test | ||||||
| Stressed eye closure for PAM4 (SECQ) | 3.4 | dB | ||||
| SECQ – 10log10(Ceq), lane under test | - | - | - | 3.4 | dB | |
| OMAouter of each aggressor lane | 4.2 | dBm |
Ordering Information
| Part Number | Application | Data Rate | Laser Source | Fiber Type |
| LNK-QDD-400G-DR4-05 | 400GBASE-DR4 | 400GB Ethernet | EML | Single Mode Fiber |