GIGALIGHT Launches 100G QSFP28 ER4&eER4&ZR4 Modules

Shenzhen, China, July 20, 2021 − GIGALIGHT today announced the launch of three 100G long-distance optical transceiver modules, OTU4 100G QSFP28 ER4&eER4&ZR4. These modules feature the industry’s leading performances, suitable for metropolitan area networks, 5G backhaul and data center interconnection (DCI).
  • Dual Rates: both 100GE and OTU4 rates are supported in the full temperature range
  • Ultra Long Reach: ER4 and eER4 up to 40km and 60km respectively without FEC (Zero BER); ZR4 up to 90km (5E-5 BER)
  • Low Power Consumption: 4.4W at 25℃ and less than 6W at 70℃
figure 1: product
The successful development of 100G QSFP28 ER4, 100G QSFP28 eER4 and 100G QSFP28 ZR4 modules demonstrates GIGALIGHT’s technical design advantages in the field of optical transceiver modules.
The transmitter optical eye diagram, receiver sensitivity and optical fiber transmission parameters are as follows:
figure 2:optical eye diagram
BER: 1E-12 BER: 5E-5
SOA + PIN L0 -22.9 -29.2
L1 -22.3 -28.7
L2 -23 -28.9
L3 -23.6 -30.1
table: receiver sensitivity
figure 3: optical fiber transmission parameters


As the open optical network device explorer, GIGALIGHT integrates the design, manufacture and sales of active & passive optical devices and subsystems. The main products are optical transceivers, silicon photonics transceivers, liquid cooling transceivers, optical passive components, AOC & DAC, coherent optical modules and open DCI BOX subsystems. GIGALIGHT is a hardware solution provider of innovatively designed high-speed optical interconnection that focuses on data center, 5G carrier network, metro WDM transmission, UHD broadcast video and other application fields.