WT-QSFP+-LR4

FEATURES

lCompliant with 40G Ethernet IEEE802.3ba and 40GBASE-LR4 Standard

lQSFP+ MSA compliant

lCompliant with QDR/DDR Infiniband data rates

lUp to 11.2Gbps data rate per wavelength

l4 CWDM lanes MUX/DEMUX design

lUp to10km  transmission

lOperating case temperature: 0~70C

lMaximum 3.5W operation power

lRoHS compliant

 

APPLICATIONS

l40G BASE-LR4 Ethernet Links

lInfiniband QDR and DDR interconnects

lClient-side 40GTelecom connections

 

Mechanical Dimensions

Optical Characteristics

Parameter

Symbol

Min.

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 SuppressionRatio

SMSR

30

–

–

dB

Total Average LaunchPower

PT

–

–

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

Rin

–

–

-128

dB/Hz

12dB reflection

Optical Return Loss Tolerance

–

–

20

dB

Transmitter Reflectance

RT

-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

Poff

-30

dBm

Receiver

Damage Threshold

THd

3.3

dBm

1

Average Power at Receiver Input, each Lane

-13.7

2.3

dBm

Receiver Reflectance

RR

–

–

-26

dB

Receiver Power (OMA), each Lane

–

–

3.5

dBm

Stressed ReceiverSensitivity in OMA, each Lane

–

–

-9.9

dBm

Receiver Sensitivity, each Lane

SR

–

–

-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 Eye Jitter, each Lane

0.3

UI