100Gb/s QSFP28 LR4 10km

Parameter

Symbol

Unit

Min

Typ

Max

Notes

Transmitter

Signaling rate, each lane

Gb/s

25.78125 ±100 ppm

1

Four Lane Wavelength Range

λ1

nm

1294.53

1295.56

1296.59

λ2

1299.02

1300.05

1301.09

λ3

1303.54

1304.58

1305.63

λ4

1308.09

1309.14

1310.19

Total launch power

Pout

dBm

10.5

Average launch power, each lane

Pavg

dBm

-4.5

4.5

2,7

Optical modulation amplitude, each lane (OMA)

OMA

dBm

-1.3

4.5

Extinction ratio

ER

dB

4

Side-mode suppression ratio

SMSR

dB

30

Average launch power of OFF

transmitter, per lane

POFF

dBm

-30

Optical return loss tolerance

dB

20

Transmitter reflectance

dB

–12

Transmitter eye mask {X1, X2, X3, Y1, Y2, Y3}

{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}

3

Receiver

Receive Rate for Each Lane

Gb/s

25.78125 ±100 ppm

4

Four Lane Wavelength Range

λ1

nm

1294.53

1295.56

1296.59

λ2

1299.02

1300.05

1301.09

λ3

1303.54

1304.58

1305.63

λ4

1308.09

1309.14

1310.19

Overload Input Optical Power

Pmax

dBm

5.5

Average Receive Power for Each

Lane

Pin

dBm

-10.6

4.5

5,7

Receiver Sensitivity(OMA)per lane

Psens1

dBm