Fujitsu Optical Components offers 100G QSFP28 ZR4 optical transceivers for 80-km reach

Jan. 20, 2022
The optical modules are designed for low-power router-to-router and switch-to-switch requirements.

Fujitsu Optical Components (FOC) now offers a line of 100G QSFP28 ZR4 optical transceivers that support reaches of up to 80 km. The optical modules are designed for low-power router-to-router and switch-to-switch requirements.

The new optical transceivers extend the link distance beyond the 40 km of previous generations of such optical modules. This capability enables the use of such pluggables to a wider range of applications without the requirement and cost of coherent transmission technology, FOC states.

The company says it achieved such performance levels via improved optical reception as well as an increase in optical output power (Tx power [OMA]) to + 2.5 dBm. FOC also makes transceivers in the line that support optical output power of + 3.5 dBm while maintaining power consumption at 5.5 W.

Dual-rate members of the QSFP28 ZR4 family will support the transmission of 100G OTU4 signals (111.8 Gbps) as well as 100 Gigabit Ethernet signals (103.1 Gbps). The 100G QSFP28 ZR4 transceivers feature a common platform design with the 100G QSFP28 ER4 for 40-km transmission and conforms to the SFF-8661 and 8679 and IEEE 100GBASE-ER4 standards for 40-km transmission and the ITU-T G. 959.1 OTU4 standard (4L1-9 C1F). Network operators therefore can easily replace fielded ER4 modules with the new ZR4s. The table below highlights the various QSFP28 ZR4 optical transceivers FOC can provide.

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