MPO12 Connector 400G DR4 Transceiver QSFP-DD CMIS Rev 4.0 1310nm 2KM

Parameter

Symbol

Min.

Typical

Max.

Unit

Notes

Wavelength

λ_C

1304.5

1311

1317.5

nm

Side Mode Suppression Ratio

SMSR

30

-

-

dB

Average Launch Power, each lane

AOP_L

-3.1

-

4

dBm

1

Outer Optical Modulation Amplitude (OMA_outer), each lane

T_OMA

-

-

4.2

dBm

Outer Optical Modulation Amplitude (OMAouter) each lane:
for TDECQ <1.4dB

for 1.4≤TDECQ≤3.4dB

T_OMA

-0.1

–1.5 + TDECQ

-

-

dBm

Transmitter and Dispersion Eye Closure for PAM4 (TDECQ), each lane

TDECQ

-

-

3.4

dB

Transmitter eye closure for PAM4(TECQ)

TECQ

-

-

3.4

dB

| TDECQ - TECQ |

-

-

-

2.5

dB

Over/under-shoot

-

-

-

22

%

Transmitter power excursion

-

-

-

2

dBm

Average Launch Power of OFF Transmitter, each lane

T_OFF

-

-

-15

dBm

Extinction Ratio, each lane

ER

3.5

-

-

dB

RIN_17.1OMA

RIN

-

-

-136

dB/Hz

Optical Return Loss Tolerance

ORL

-

-

17.1

dB

Transmitter Reflectance

T_R

-

-

-26

dB

Transmitter Transition Time

Tt

-

-

17

ps

Parameter

Symbol

Min.

Typical

Max.

Unit

Notes

Wavelength

λ_C

1304.5

1311

1317.5

nm

Damage Threshold, each lane

AOP_D

5

-

-

dBm

Average Receive Power, each lane

AOP_R

-7.1

-

4

dBm

1

Receive Power (OMA_outer), each lane

OMA_R

-

-

4.2

dBm

Receiver Reflectance

RR

-

-

-26

dB

Receiver Sensitivity (OMA_outer), each lane

for TECQ <1.4dB

for 1.4≤TECQ≤3.4dB

S_OMA

-

-4.5

-5.9+TECQ

dBm

Stressed Receiver Sensitivity (OMA_outer), each lane

SRS

-

-

-2.5

dBm

2

Conditions of stressed receiver sensitivity test

-

-

-

Stressed eye closure for PAM4 (SECQ)

-

-

3.4

-

dB

Part No.

Application

Data Rate

Laser Source

Fiber Type

LNK-QDD-400G-DR4-2

400GBASE-DR4+

400GB Ethernet

EML

Single Mode Fiber