100GHz 400G Optical Transceiver Coherent Module QSFP-DD 120KM For DCI Applications

Conditions

Transmitter frequency range

191.3

193.7

196.1

TU-T grid. Frequency range over which the specifications hold unless noted otherwise. The frequency is fixed at 193.7 THz for unamplified link applications.

Transmitter laser frequency stability

Offset from channel frequency set point. The receiver LO has the same frequency accuracy.

Transmitter output power

Measured at optical connector.

Transmitter output power with TX disabled

Max Output power with TX_DIS asserted

Transmitter output power during wavelength switching

Transmitter reflectance

Transmitter polarization dependent power

Mean I-Q amplitude imbalance

Transmitter polarization dependent power

Power difference between X and Y polarization

Frequency offset between RX and LO

Acquisition Range

Input power range

Input sensitivity (amplified link application)

Input sensitivity (unamplified link application)

For unamplified link applications, the minimum input power is –20 dBm @receiver OSNR tolerance ≥ 34 dB.

OSNR tolerance (amplified link application)

OSNR tolerance (unamplified link application)

The OSNR tolerance cannot be less than 34 dB for unamplified link applications.

Optical return loss

Optical reflectance at connector input

CD Tolerance

Tolerance to chromatic dispersion

Optical path power penalty

OSNR penalty tolerance due to –35 dB interferometric crosstalk and 2400 ps/nm chromatic dispersion.

PMD tolerance

Tolerance to PMD with ≤ 0.5 dB penalty to OSNR sensitivity. 10 ps of PMD corresponds to max 30 ps of DGD and max 500 ps2 of SOPMD

PDL tolerance (amplified link application)

Tolerance to PDL with < 1.3 dB penalty to OSNR sensitivity When change in PSP is ≤ 1 rad/ms.

PDL tolerance (unamplified link application)

The PDL tolerance is 2.5 dB in unamplified link application when the reciever OSNR sensitivity penalty is 0.8 dB.

Tolerance to change in SOP

krad/s

Tolerance to change in SOP with ≤ 0.5 dB penalty to OSNR sensitivity. Measurement relative to reference with 10 ps PMD and 2.5 dB PDL and SOP of < 1 rad/ms under the same conditions.

Optical input power transient tolerance

±2

Tolerance to change in input power with ≤ 0.5 dB penalty to OSNR sensitivity. Received power is within –12 dBm to 0 dBm. Rise/fall times of power change defined by 20%–80% of 50 µs or slower.