With the growth of enterprises and network development, the amount of data accumulated is increasing. The basic network transmission system needs higher network capacity and longer transmission distance to meet the requirements of large capacity data storage and efficient data transmission.
Customers need to transmit more than 40km distance between two sites, but the existing data center infrastructure is equipped with 10g and 40g switches, modules and jumpers for 40g interface, and the maximum transmission distance is less than 40km. How to realize this demand in the existing network environment?
HTF provides DWDM solution, which uses 8-channel wavelength division multiplexer, OEO optical amplifier and 10g DWDM optical module to meet the user's requirements through dual fiber bidirectional transmission.
A large cost advantage. The scheme does not need additional optical fiber deployment. Firstly, the 40g optical signal is decomposed into four 10g optical signals by mtp-lc branch jumper, and then they are converted into four 10g DWDM optical wavelengths with the longest transmission distance up to 80km by using OEO optical amplifier. Considering the loss of optical transmission, the actual maximum transmission distance can be more than 60km or even close to 80km, which can fully meet the transmission distance requirements of customers.
As the 10g DWDM 80km optical module belongs to long-distance transmission, and its average received optical power is greater than the input optical power, it is necessary to add a 13-20db optical attenuator to attenuate the optical fiber signal strength, so as to ensure that the actual received power of the optical module is less than the input optical power, so as to avoid the optical module burning.
The enhanced optical power amplifier (BA) is deployed behind the wavelength division multiplexer at the transmitting end to provide the transmitted optical power of the system. The preamplifier (PA) is deployed in front of the wavelength division multiplexer at the receiving end to improve the receiving sensitivity of the signal.
