25G SFP28 LR single mode dual fiber 1310nm 10km 25G LR SM 10km LC DDM
Description
The NuFiber SFP-25G-LR is is a single-channel, pluggable, fiber-optic SFP28 transceiver module for 25G Ethernet and InfiniBand EDR applications. It is a high performance module for short-range data communication and interconnect applications which operate at 25.78125Gb/s up to 10km. This module is designed to operate over single mode fiber systems using a nominal wavelength of 1310nm. The electrical interface uses a 20 contact edge type connector. The optical interface uses duplex LC receptacle. This module incorporates Gigalight Technologies proven circuit and technology to provide reliable long life, high performance, and consistent service.
Features
(1) Hot-pluggable SFP28 form factor
(2 )Supports 25Gbps data rate
(3) Maximum link length of 10km
(4) 1310nm DFB laser and PIN photo-detector
(5) Internal CDR on both Transmitter and Receiver channel
(6) Duplex LC receptacle
(7) Single 3.3V power supply
(8) Power dissipation < 1W
(9) Digital diagnostics functions are available via the I2C interface
(10) RoHS-6 compliant
(11) Commercial case temperature range: 0°C to 70°C
Applications
Optical Parameters
| Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
| Transmitter |
| Data rate |
BR |
|
25.78 |
28.05 |
Gbps |
|
| Centre Wavelength |
λc |
1295 |
1310 |
1325 |
nm |
|
| Spectral Width (-20dB) |
σ |
|
|
1 |
nm |
|
| Average Output Power |
Pavg |
-1.5 |
|
2 |
dBm |
|
| Optical Power OMA |
POMA |
-6.4 |
|
3 |
dBm |
|
| Extinction Ratio |
ER |
3.5 |
|
|
dB |
|
| Differential data input swing |
VIN,PP |
180 |
|
700 |
mV |
|
| Input Differential Impedance |
ZIN |
90 |
100 |
110 |
Ω |
|
| TX Disable |
Disable |
|
2.0 |
|
Vcc |
V |
|
| Enable |
|
0 |
|
0.8 |
V |
|
| TX Fault |
Fault |
|
2.0 |
|
Vcc |
V |
|
| Normal |
|
0 |
|
0.8 |
V |
|
| Receiver |
| Data rate |
BR |
|
25.78 |
|
Gbps |
|
| Centre Wavelength |
λc |
1295 |
1310 |
1325 |
nm |
|
| Receiver Sensitivity (OMA) |
Psens |
- |
- |
-13.0 |
dBm |
|
| Receiver Power (OMA) |
|
|
|
-13 |
dBm |
|
| LOS De-Assert |
LOSD |
|
|
-12 |
dBm |
|
| LOS Assert |
LOSA |
|
|
-13 |
dBm |
|
| LOS Hysteresis |
|
0.5 |
|
|
dB |
|
| Differential data output swing |
Vout,PP |
300 |
|
900 |
mV |
|
| LOS |
High |
2.0 |
|
Vcc |
V |
|
| Low |
|
|
0.8 |
V |
|
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Single Mode Dual Fiber 25G SFP28 LR 1310nm SM 10km LC DDM Images
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