The development of the access network requires bandwidth to meet the needs of various broadband services now and in the future, and the requirements for equipment cost and operation and maintenance management overhead are relatively strict. FIEBRTOP has developed SFF, SFP, XFP, SFP+ miniaturized high-speed optical transceiver module series, XFP, SFP package form 10G EPON burst mode optical transceiver module series, multi-channel DWDM wavelength adjustable technology and product series and other related technologies and products .