SFP optical modules are hot-swappable pouched modules in SFP packaging. At this stage, the maximum rate can reach 10.3G, and the power socket is LC. SFP optical modules are mainly composed of laser generators. SFP classification can be divided into rate classification, optical wavelength classification and mode classification. SFP optical module is composed of laser generator (including data signal signal transmitter TOSA and receiver ROSA), PCB circuit board IC and external components. Plug composition. For better and stronger distinction, generally speaking, the basic parameter type of the module is to identify the module according to the color of the bottle stopper.

　　The XFP optical module and SFP optical module are explained in detail.

　　According to the different rates, SFP optical modules are divided into 155M/622M/1.25G/2.125G/4.25G/8G/10G, 155M and 1.25G. The wavelengths of light placed on the market are divided into 850nm/1310nm/1550nm/1490nm/1530nm /1610nm, 850nm is SFP single-mode fiber, below 500nm, 1310/1550nm is multi-mode fiber, and above 2KM is multi-mode fiber. Relatively speaking, the price of these three light wavelengths is cheaper than the other three.

　　The SFP single-mode optical fiber control module bottle plug is a black-gray bottle plug, the light wavelength is 850nm, the single-mode specification model is 50/125um or 62.5/125um, and the server bandwidth (optical fiber line information transmission volume) is generally 200MHz to 2GHz. Based on single-mode, single-mode fiber optic terminal equipment can carry out transmissions of nearly 5 kilometers. Use light-emitting diodes or laser generators as light sources.

　　The SFP multi-mode optical fiber optical module is a dark blue bottle stopper, the wavelength of light is 1310nm, and the multi-mode specification model is 9-10/125mm. Compared with single-mode, it has the characteristics of endless server bandwidth and no consumption. Multimode fiber optic transceivers are mostly used for remote control transmission, sometimes reaching 150 to 200 kilometers. Choose LD and spectrometer narrow LED as light source.

　　XFP optical module.

　　The XFP optical module and SFP optical module are explained in detail.

　　XFP optical module is a standardized package of serial communication 10G optical receiving and sending module. Following the XFPMSA protocol, it can be used in SONETOC-192, 10Gbps Gigabit Ethernet, 10Gbps optical fiber line safety exit and G709 connection, and LC power sockets are mostly used. Comply with the following specific standards: 10G fiber optic line safety exit, 10G Gigabit Ethernet, SONET/OC-192, SDH/STM-64. The key is optical fiber transmission laser welding laser welding for data communication and telecommunication network data transmission Internet.

　　The XFP module is a hot-swappable, small-footprint, serial-to-serial communication optical transceiver. The XFP Multi-Source Agreement (MSA) immediately selects the XFI socket specification and model to define the power socket for the power installation project, and completely achieves the limitation of SDH optical transmission Internet. Compared with 1X9 and SFP modules, XFP has higher transmission rate and transmission capacity, and also promotes the expansion of the application scope of Gigabit Ethernet to transmission Internet and wireless local area networks.

　　XFP optical modules are widely used, including 10Gbps SONET/SDH, fiber line security exit, 10G Gigabit Ethernet, SONET/OC-192, SDH/STM-64HE and other applications, including DWDM connections.