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

-2.9

-

4.0

dBm

1

Outer Optical Modulation Amplitude (OMA_outer), each lane

T_OMA

-0.8

-

4.2

dBm

2

Launch Power in OMA_outer minus TDECQ,
each lane

T_OMA

-2.2

-

-

dBm

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

TDECQ

-

-

3.4

dB

TDECQ – 10log10(Ceq)

-

-

-

3.4

dB

Average Launch Power of OFF Transmitter, each lane

T_OFF

-

-

-15

dBm

Extinction Ratio, each lane

ER

3.5

-

-

dB

Transmitter transition time

-

-

-

17

ps

RIN_21.4OMA

RIN

-

-

-136

dB/Hz

Optical Return Loss Tolerance

ORL

-

-

21.4

dB

Transmitter Reflectance

T_R

-

-

-26

dB

3

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

-5.9

-

4.0

dBm

1

Receive Power (OMA_outer), each lane

OMA_R

-

-

4.2

dBm

Receiver Reflectance

RR

-

-

-26

dB

Receiver Sensitivity (OMA_outer), each lane

S_OMA

-

-

-4.4

dBm

2

Stressed Receiver Sensitivity (OMA_outer), each lane

SRS

-

-

-1.9

dBm

3

Conditions of stressed receiver sensitivity test

Stressed eye closure for PAM4 (SECQ)

3.4

dB

SECQ – 10log10(Ceq), lane under test

-

-

-

3.4

dB

OMA_outer of each aggressor lane

4.2

dBm

Part Number

Application

Data Rate

Laser Source

Fiber Type

LNK-QDD-400G-DR4-05

400GBASE-DR4

400GB Ethernet

EML

Single Mode Fiber