Research And Design Of 100Gbps CFP2 LR4 Optical Module

With the rapid development of mobile Internet, and the propulsion and popularization of large bandwidth of Internet applications ——triple play, Internet of Things, cloud computing and video, the bandwidth of the optical communication backbone network pressure is increasing, therefore, it is imperative to sharply rise the transmission capacity of optical communication network. For the DWDM optical transmission system, it is a method to improve the transmission capacity by using 100Gbps (Hereinafter referred to as 100G) optical communication technology to promote the transfer rate of optical communication channel. As the key technology of 100G optical communication, the implementation technology of 100G optical module is complex and the cost is still high, which restricts the development of 100G optical communication barriers to a certain extent. Therefore, it is the key to promote the development of optical communication by accelerating the development of 100G optical module technology and designing the optical module in accordance with optical communication protocol, lower power consumption,smaller package structure and lower cost.The purpose of this paper is to solve the above problems and meet the market demand for 100G optical module. The package size of 100Gbps CFP2 LR4 optical module this paper researched is only 111.6x41.5x17.4mm, which is composed of 4 optical wavelength channel outputs, and each maximum modulation rate optical signal reaching to 27.952493Gbps and the maximum transmission distance up to 10km, at the same time, the optical module meets the definition defined by 802.3ba and CFP2 MSA protocol.Firstly, this paper introduces the research background of 100G optical module, and clarifies the research significance of 100Gbps CFP2 LR4 optical module; then it presents the related protocols of 100G optical module, and determines the design index of commercial 100Gbps CFP2 LR4 optical module according to the protocol requirements; then it describes the key technology of 100Gbps CFP2 LR4 optical module the lasers and introduces automatic temperature control, automatic power control, communication module design and PCB design in detail; Finally, it carries on comprehensive test and systematic analysis of 100Gbps CFP2 LR4 optical module, and puts forward some measures to optimize and perfect the optical module in follow-up work, according to the deficiency of the existing design.