Generic Compatible QSFP+ 40GBASE-LR4 10km

Parameter

Symbol

Min

Max

Unit

Note

Storage Temperature

Tst

-20

85

degC

Relative Humidity (non-condensation)

RH

0

85

%

Operating Case Temperature

Topc

0

70

degC

Operating Range

0.002

10

km

Supply Voltage

VCC

-0.5

3.6

V

Parameter

Symbol

Typical

Max

Unit

Notes

Wavelength Assignment

L0

1264.5

1271

1277.5

nm

L1

1284.5

1291

1297.5

nm

L2

1304.5

1311

1317.5

nm

L3

1324.5

1331

1337.5

nm

Transmitter

Side-mode Suppression Ratio

SMSR

30

-

-

dB

Total Average Launch Power

P_T

-

-

8.3

dBm

Average Launch Power, each Lane

-7

-

2.3

dBm

Optical Modulation Amplitude, each Lane

OMA

-4

-

+3.5

dBm

Difference in Launch Power between any two Lanes (OMA)

-

-

6.5

dB

Launch Power in OMA minus Transmitter and Dispersion

Penalty (TDP), each Lane

-4.8

-

dBm

TDP, each Lane

TDP

2.3

dB

Extinction Ratio

ER

3.5

-

-

dB

Relative Intensity Noise

R_in

-

-

-128

dB/Hz

12dB

reflection

Optical Return Loss Tolerance

-

-

20

dB

Transmitter Reflectance

R_T

-12

dB

Transmitter Eye Mask Definition {X1, X2, X3, Y1,Y2, Y3}

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

Average Launch Power OFF Transmitter, each Lane

P_off

-30

dBm

Receiver

Damage Threshold

TH_d

3.3

dBm

1

Average Power at Receiver Input, each Lane

-13.7

2.3

dBm

Receiver Reflectance

R_R

-

-

-26

dB

Receiver Power (OMA), each Lane

-

-

3.5

dBm

Stressed Receiver Sensitivity in OMA, each Lane

-

-

-9.9

dBm

Receiver     Sensitivity,    each

Lane

S_R

-

-

-11.5

dBm

Difference in Receive Power between any two Lanes (OMA)

7.5

dB

Receive Electrical 3 dB upper Cutoff Frequency, each Lane

12.3

GHz

Conditions of Stress Receiver Sensitivity Test2

Vertical Eye Closure Penalty, each Lane

1.6

dB

Stressed

Lane

Eye

Jitter,

each

0.3

UI

Parameter

Symbol

Typical

Max

Unit

Note

s

Center Wavelength

λ_C

1260

1310

1360

nm

Damage Threshold

TH_d

+3

dBm

Overload, each lane

OVL

+0.5

dBm

Receiver Sensitivity in OMA, each lane

SEN

-12.6

dBm

Signal Loss Assert Threshold

LOSA

-30

dBm

Signal Loss Dessert Threshold

LOSD

-15

dBm

LOS Hysteresis

LOSH

0.5

6

dBm

Parameter

Symbol

Typical

Max

Unit

Notes

Supply Voltage

Vccl, VccTx, VccRx

-0.5

-

3.6

V

Data Rate, each Lane

-

10.3125

11.2

Gbps