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Sample Report of Finisar FTLC1154RDPL QSFP28-100G-LR4 Optical Module

Time: 2024-03-19
        Finisar offers the QSFP28-100G-LR4 optical transceiver, which supports 100G Ethernet transmission up to 10 km over single-mode fiber (SMF). Moduletek Laboratory has tested this sample module to help you fully understand its performance indicators and actual application effect on switches.
1. Product Overview
        The Finisar QSFP28-100G-LR4 optical transceiver supports a maximum link length of 10 km over standard G.652 single-mode fiber (SMF) at 100G rate, and operates within a commercial temperature range of 0–70℃. Official key parameters and the physical appearance of the module are as follows:
Table 1 Official Key Parameters
Type
Distance
Max Power Consumption
Operating Temperature
Cable Type
Wavelength
Transmit Power
Receive Power
Transmiter
Receiver
100G
10KM
3.5W
0~70℃
SMF
1310nm
-4.3~+4.5dBm
-10.6~+4.5dBm
4xLWDM DFB Laser
PIN

FINISAR QSFP28-100G-LR4 Optical Module Physical Drawing
Figure 1 Physical Image
2. On-Switch Identification Test
        The QSFP28-100G-LR4 module was installed into a Nokia 7250 switch. The module achieved normal LINK status with the port indicator illuminated. The switch correctly identified complete module information, including module type, part number, and serial number. DOM data was readable, with all values within the normal threshold range and no alarms reported.
Table 2 On-Switch Identification Results
Item
 Information Read by Switch
LINK
Identification
DOM Data
3. Key Performance Parameter Test
        All performance tests were conducted with the module case temperature stabilized at 45℃ on a professional test fixture. The test results are shown below:
Table 3 Performance Indicators
  Parameter
Channe 1
Channe 2
Channe 3
Channe 4
Remarks
  Transmit Optical Power
3.64dBm
4.03dBm
3.15dBm
3.52dBm
 
  Receive Sensitivity (without fiber)
-10.72dBm
-11.72dBm
-12.1dBm
-11.32dBm
0 BER
  Receive Sensitivity (with 10KM fiber)
-11.15dBm
-12.02dBm
-11.86dBm
-11.55dBm
0 BER
  Power Consumption
2.843W
        Eye diagram tests were performed at a module case temperature of 45℃. The eye diagrams and corresponding parameters are shown below:
Table 4 Eye Diagrams
 
Eye Diagram
 
Eye Diagram
Channe 1
Channe 2
Channe 3
Channe 4

Table 5 Eye Diagram Parameters
  Parameter
Channe 1
Channe 2
Channe 3
Channe 4
  Temperature (℃)
45
45
45
45
  Extinction Ratio (dB)
6.91
6.75
7.03
7.12
  P-P Jitter (ps)
9.68
8.52
7.93
9.33
  Rise Time (ps)
15.48
16.28
14.76
16.34
  Fall Time (ps)
20.34
19.72
19.11
20.96
  Margin Value (%)
35.1
33.3
39.6
30.9
        Actual test results confirm that all key performance indicators of this sample module are consistent with Finisar’s official specifications.
        Moduletek sincerely serves you.
        For further inquiries about the above content, please contact us at: sales@moduletek.com
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