Since we are a company dealing with China optical transceiver, we remind you that the optical transceiver is the core device of optical communication, which completes the photoelectric/electrical-optical conversion of the optical signal. It consists of two parts: the receiving part and the transmitting part. The receiving part realizes photoelectric conversion, and the transmitting part realizes electro-optical conversion.
1. Transmitting part: The electrical signal input with a certain code rate is processed by the internal driver chip to drive the semiconductor laser (LD) or light emitting diode (LED) to emit a modulated optical signal of the corresponding rate, which has an automatic optical power control circuit ( APC) to keep the output optical signal power stable.
2. Receiving part: The optical signal with a certain code rate is input into the transceiver and converted into an electrical signal by the photodetection diode, and the electrical signal of the corresponding code rate is output after the preamplifier. The output signal is generally PECL level. At the same time, when the input optical power is less than a certain value, an alarm signal will be output.
Intel optical transceivers are high-quality and reliable components that are widely used in data center and other networking environments, providing a cost-effective and efficient solution for transmitting data over optical fiber cables at high speeds and over long distances.
1. Transmission rate: The transmission rate refers to the number of bits transmitted per second, in units of Mb/s or Gb/s. Main rates: 100M, Gigabit, 2.5G, 10G, 25G, 40G, 100G, etc. 400g optical transceiver is available.
2. Transmission distance: The transmission distance of the optical transceiver is divided into three types: short distance, medium distance and long distance. It is generally considered that 2km and below are short distances, 10-20km are medium distances, and 30km, 40km and above are long distances.
Intel optical transceivers are high-quality and reliable components that are widely used in data center and other networking environments, providing a cost-effective and efficient solution for transmitting data over optical fiber cables at high speeds and over long distances.
Note: Loss is the loss of light energy due to absorption, scattering and leakage of the medium when light is transmitted in the fiber. This part of the energy is dissipated at a certain rate with the increase of the transmission distance. Dispersion is mainly caused by the fact that electromagnetic waves of different wavelengths travel in the same medium at different speeds, resulting in different wavelength components of the optical signal reaching the receiving end at different times due to the accumulation of transmission distances, resulting in pulse broadening and inability to distinguish the signal. value. Therefore, users need to select appropriate optical transceivers according to their actual networking conditions to meet different transmission distance requirements.
3. Center wavelength: The center wavelength refers to the optical band used for optical signal transmission. At present, there are three main central wavelengths of optical transceivers: 850nm band, 1310nm band and 1550nm band. The 850nm band is mostly used for short-distance transmission of ≤2km. The 1310nm and 1550nm bands are mostly used for medium and long-distance transmission, and transmission over 2km.
