The advances in electronic and photonic integration allowed coherent technology for metro DCIs to be miniaturized into QSFP-DD and OSFP form factors. This progress allowed the Optical Internetworking Forum (OIF) to create the 400ZR and ZR+ standards for 400G DWDM pluggable modules. Following the success of 400ZR standardization, the industry quickly recognized the need for even The post Towards the 800ZR Future appeared first on EFFECT Photonics .