CFP developing history ( CFP, CFP2, CFP4)
First, I would like to share with you a picture clearly show the different package in different times for CFP. As the need for smaller form factor and higher efficiency, we must make the package smaller and smaller.
The CFP Multi-Source Agreement (MSA) defined 100G form factors – CFP2 and CFP4. Compared to the existing CFP form factor, CFP2 and CFP4 will respectively double and quadruple front panel port density. Pluggable CFP, CFP2 and CFP4 transceivers support the ultra-high bandwidth requirements of data communications and telecommunication networks that form the backbone of the internet.
CFP 100GBase-LR4/ER4 Design
The first-generation 100GBase-LR4/ER4 optical transceiver architecture is similar to that of the 40GBase-LR4, but with the speed of the active optoelectronic components increased to 28Gbps for realizing a 4x28G optical interface. Additionally, the CAUI electrical interface defined in IEEE 802.3ba-2010 is widened from 4x10G lanes to 10x10G lanes. A 10:4/4:10 “gearbox” serializer/ deserializer IC is used to implement the electrical interface between the 10-lane host data path and the four-lane optical data path.
The new form factors take advantage of advances in optics and IC integration, and increase in electrical I/O rate from 10G to 25G. They will support existing and future duplex single-mode fiber (SMF) and parallel multi-mode fiber (MMF) interfaces. The receiver optical specifications for LR4 and ER4 are based upon PIN-PD detector technology with integrated TIA. The receiver specification also includes optical amplification, such as from a semiconductor optical amplifier, to compensate for optical fiber attenuation loss in the ER4 40-km application.
These components are packaged into the CFP pluggable module with non-coaxial, 28-Gbps electrical connections between the discrete component TOSAs, ROSAs, and gearbox IC.
CFP is widely available in the cloud optical transceiver market, especially with the development of 100G Ethernet in recent years. Infiberone is now developing CFP4 and will launch it the end of this year. We now have high quality CFP SR10, CFP LR, CFP2 welcome to our store for shopping!