The Development Background of 10G XSFP Optical Transceiver
In the age of big data, as people's demand for communication system bandwidth continues to increase, the data transmission capacity of communication equipment is also constantly improved. Nevertheless, today's huge data transmission business is still based on optical fiber transmission. In optical fiber transmission, such as next-generation mobile networks, fixed access networks, metropolitan area networks, and data centers, 10G transmission still occupies a mainstream position. Therefore, the 10-Gigabit optical transceiver that realizes photoelectric conversion also occupies a very important position.
The Basic Concept of 10G XFP Optical Transceiver
The XFP optical transceiver can be said to be an optical module transceiver that was born relatively early. It is a hot-swappable serial-to-serial optical transceiver with a small circuit area. It can support SONET OC-192 and 10Gbps Ethernet Network, 10Gbps Fibre Channel and G709 links, mostly using LC interfaces. XFP's Multi-Source Protocol (MSA) directly uses the XFI interface specification to define the power interface, which fully meets the limits of the SDH optical transmission network range. Compared to the 1X9 and SFP module transceivers, XFP has a higher transmission rate and transmission capacity, which has also expanded the application range of Ethernet to metropolitan area networks and wide area networks.
In fact, the XFP optical module is not an optical transceiver module transponder but an optical transceiver. The difference between the two is that the XFP optical transceiver is actually just a photoelectric conversion device, which is used to complete the mission of optical / electrical signal conversion, and other functions such as multiplexing / demultiplexing, 64B / 66B encoding and decoding are provided by the circuit board. On the chip. 10Gbit/s technology is still the mainstream technology of current communication systems. XFP optical transceivers have become mainstream due to their low price, small size, and wide application environment. In addition, high port density applications can also be easily implemented
The Classification of 10G XFP Optical Transceiver
1. BiDi XFP Optical Transceiver
BiDi XFP optical transceiver is a single fiber bidirectional 10G optical module transceiver which supports 10G transmission rate. The transmitting part uses low-jitter, high-performance 1330nm / 1270nm DFB laser components (1330 / 1270nm wavelength), which can support a maximum transmission distance of 10km.
2. CWDM XFP Optical Transceiver
CWDM XFP optical transceiver is a low-cost WDM transmission technology for the metropolitan area network access layer. CWDM XFP optical module transceiver adopts CWDM technology, which can combine optical signals with different wavelengths through an external wavelength division multiplexer and transmit them through one optical fiber, thereby saving optical fiber resources. At the same time, the receiving end needs to decompose the complex optical signal using a wave decomposition multiplexer. The CWDM XFP optical module is divided into 18 bands, from 1270nm to 1610nm, with a distance of 20nm between each two bands.
3. DWDM XFP Optical Transceiver
DWDM XFP optical transceivers are so-called Dense Wavelength Division Multiplexing (XFP) optical module transceivers. To put it simply, dense wavelength division multiplexing technology is a kind of optical fiber data transmission technology. This technology uses the wavelength of the laser to transmit data in the optical fiber according to the bit-by-bit parallel transmission or string transmission. DWDM optical module transceiver is a dense wavelength division multiplexed optical module. It has 44 common channels to choose from.
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