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Description
QSFP28 100G LR4 Features
- Supports 112Gbps aggregate bit rates
- 4x28Gbps LAN-WDM transmitter
- High-sensitivity PIN-TIA receiver
- Up to 10kmon SMF
- Duplex LC receptacles
- Hot pluggableQSFP28 form factor
- Power dissipation< 3.5W
- All-metal housing for superior EMI performance
- RoHS6 compliant (lead free)
- Operating case temperature: Commercial: 0ºC to +70°C
QSFP28 100G LR4 Applications
- OTN OTU4 4I1-9D1F
- 100G Telecom connections
Standards
- Compliant with QSFP28 MSA
- Compliant with SFF-8636
- Compatible with ITU-T G.959.1
QSFP28 100G LR4 Transceiver Optical Parameters
| Parameter | Symbol | Min. | Typical | Max. | Unit | Note |
| Transmitter Section | ||||||
| Lane Centre Wavelength (range) | λ0 | 1294.53 | 1296.59 | nm | ||
| λ1 | 1299.02 | 1301.09 | nm | |||
| λ2 | 1303.54 | 1305.63 | nm | |||
| λ3 | 1308.09 | 1310.19 | nm | |||
| Spectral Width (-20dB) | Δλ | 1 | nm | |||
| Side Mode Suppression Ratio | SMSR | 30 | dB | |||
| Average Optical Power per Lane | Pout | -0.6 | +4.0 | dBm | 1 | |
| Laser Off Power per Lane | Poff | – | – | -30 | dBm | |
| Extinction Ratio | ER | 4 | – | 7 | dB | 2 |
| Relative Intensity Noise | RIN | – | – | -128 | dB/Hz | |
| Optical Return Loss Tolerance | – | – | 20 | dB | ||
| Transmitter eye mask definition {X1, X2, X3, Y1, Y2, Y3} | {0.25, 0.4, 0.45, 0.25, 0.28, 0.4} | 2 | ||||
| Receiver Section | ||||||
| Lane Center Wavelength (range) | λ0 | 1294.53 | 1296.59 | nm | ||
| λ1 | 1299.02 | 1301.09 | nm | |||
| λ2 | 1303.54 | 1305.63 | nm | |||
| λ3 | 1308.09 | 1310.19 | nm | |||
| Average Receiver Power per Lane | RXPX | -6.9 | 4 | dBm | 3 | |
| Equivalent Sensitivity per Lane | RXsens | -8.4 | dBm | 3 | ||
| Los Assert | LOSA | -24 | – | – | dBm | |
| Los Dessert | LOSD | – | – | -11.6 | dBm | |
| Los Hysteresis | LOSH | 0.5 | – | 5 | dB | |
| Overload per Lane | Pin-max | – | – | 4 | dBm | 3 |
| Receiver Reflectance | – | – | -12 | dB | ||
| Damage Threshold per Lane | – | – | 5.5 | dBm | ||
Notes:
- The optical power is launched into 9/125µm SMF.
- Measured with a PRBS 231-1test pattern @27.95Gbps.
- Measured with a PRBS 231-1test pattern @27.95Gbps, ER=4dB, BER <10-6(pre-FEC), BER <10-12(FEC).
