The main differences between 40G QSFP+ GEN2 and 40G QSFP+ on the market lie in the multichannel real-time DDM function. It is known that it is easy to realize multichannel real-time DDM function in transceivers with data rate lower than 10G bps, but very complicated for those more than 10Gbps. As for parallel high-speed optical transceiver with higher rate, it requires excellent design and precise layout to realize optic circuit detection on 4-channel or 12-channel array light chip in an extremely limited space. Starting optical engine technology development since 2011, now by its own endeavor and cooperation with quality suppliers, OPTCOM has gained rich experience and unique technology about array LENS development and integrated optical devices coupling capsulation.
Multichannel parallel optical power real-time monitoring means more to optical network than single-channel transceiver, because any one channel of multichannel module having problem would lead to overall failure. Once it can realize multichannel simultaneous monitoring, it means 40G or 100G module is no longer an uncontrolled black box. With optical power monitoring loopback, engineers can design power automatic feedback compensation circuit, enable the modules adjust to wider temperature range and poor external environment. Multichannel simultaneous monitoring also assures vector compliance of every path.