100Gb/s QSFP28 LR4 10km Optical Transceiver Module
HTF’100G QSFP28 LR4 optical Transceiver integrates receiver and tran***itter path on one module. In the tran***it side, four lanes of serial data streams are recovered, retimed, and passed to four laser drivers. The laser drivers control 4- Distributed Feedback Laser (DFB) with center w***elength of 1296 nm, 1300nm, 1305nm and 1309 nm. The optical signals are multiplexed to a single –mode fiber through an industry standard LC connector. In the receive side, the four lanes of optical data streams are optically de-multiplexed by the integrated optical de-multiplexer. Each data stream is recovered by a PIN photo-detector and trans-impedance amplifier, retimed. This module features a hot-pluggable electrical interface, low power c***umption and MDIO management interface.
The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP28 Multi-Source Agreement (MSA) and compliant to IEEE 802.3bm.
Optical Characteristics
The following optical characteristics are defined over the Recommended Operating Environment unless otherwise specified.
|
Parameter |
Symbol |
Min. |
Typical |
Max |
Unit |
Notes |
|
|
Tran***itter |
|||||||
|
Lane w***elength（range） |
L0 |
1294.53 |
1295.56 |
1296.59 |
nm |
|
|
|
L1 |
1299.02 |
1300.05 |
1301.09 |
nm |
|
||
|
L2 |
1303.54 |
1304.58 |
1305.63 |
nm |
|
||
|
L3 |
1308.09 |
1309.14 |
1310.09 |
nm |
|
||
|
Signaling rate, each lane |
|
|
25.78125 |
|
GBd |
|
|
|
Side-mode suppression ratio |
***SR |
30 |
|
|
|
|
|
|
Total launch power |
|
|
|
10.5 |
dBm |
|
|
|
***erage launch power, each lane |
P***g |
-4.3 |
|
4.5 |
dBm |
|
|
|
Extinction Ratio |
ER |
4 |
|
|
dB |
|
|
|
Tran***itter and Dispersion Penalty, each lane |
TDP |
|
|
2.2 |
dB |
|
|
|
OMA minus TDP, each lane |
OMA-TDP |
-2.3 |
|
|
dBm |
|
|
|
***erage launch power of OFF tran***itter, each lane |
|
|
|
-30 |
dBm |
|
|
|
Tran***itter reflectance |
|
|
|
-12 |
dB |
|
|
|
Tran***itter eye mask {X1, X2,X3, Y1, Y2, Y3} |
|
{0.25, 0.4, 0.45, 0.25, 0.28, 0.4} |
|
|
|||
|
Receiver |
|||||||
|
Signaling rate, each lane |
|
|
25.78125 |
|
GBd |
|
|
|
Receiver Sensitivity per lane |
Rsen |
|
|
-10.6 |
dBm |
1 |
|
|
Input Saturation Power (overload) |
Psat |
|
|
4.5 |
dBm |
|
|
|
LOS Assert |
LOSA |
-30 |
|
|
dBm |
|
|
|
LOS De-assert |
LOSD |
|
|
-12 |
|
|
|
|
Receiver reflectance |
Rr |
|
|
-26 |
|
|
|
|
LOS Hysteresis |
|
0.5 |
|
4 |
dB |
|
|
Notes:
- Measured with a PRBS 231-1 test pattern, @25.78Gb/s, BER<10-12.
