100G QSFP28 CWDM4 Optical Transceiver

Parameter
Uni
Min.
Typical
Max.
Notes
Transmitter (4X25G)
TX Central Wavelength
nm
1264.5
1271
1277.5
1284.5
1291
1297.6
1304.5
1311
1317.5
1324.5
1331
1337.5
Signaling rate, each lane
Gb/s
25.78125±100ppm
SMSR
dB
30
Average Launch power Tx_off
dBm
-
-
-30
Total Average Launch Optical Power
dBm
8.5
Average Pav each Lane
dBm
-6.5
2.5
Extinction Ratio
dB
3.5
-
-
Optical Modulation Amplitude (OMA), each lane
dBm
-4.0
2.5
Transmitter & Dispersion Penalty, each lane
dB
3.0
Transmitter Optical Mask
dB
{0.31, 0.4, 0.45, 0.34, 0.38, 0.4}
Transmitter Reflectance
dB
-12
Optical Return Loss Tolerance
dB
20
Relative Intensity Noise (OMA)
dB/Hz
-130
Receiver (4X25G)
RX Central Wavelength
nm
1264.5
1271
1277.5
1284.5
1291
1297.6
1304.5
1311
1317.5
1324.5
1331
1337.5
Average Receive Power, each lane
dBm
-11.5
2.5
Sensitivity (OMA)@BER=5E-5, PRBS31
dBm
-
-
-10
Receiver Saturation, OMA
dBm
2.5
-
-
Receiver Reflectance
dB
-26
LOS Assert
dBm
-24
-
-
LOS De-Assert
dBm
-
-
-11.6
LOS Hysteresis
dB
0.5
-
-