In the last decades, Dense Wave Division Multiplexing (DWDM) transmission systems achieve a higher transmission capacity over greater distances which satisfy the demands of higher transmission to a certain extent. In addition, to achieve longer transmission distances, as an important technology, optical amplifier is widely used by people in optical communication networks. Compared to the repeaters, optical amplifiers do not need to convert the signal to an electrical signal first, thus cost efficiency has led to repeaters being largely replaced in long-haul systems by optical amplifiers since one amplifier can be used for many wavelengths in a Wavelength Division Multiplexing (WDM) system. Nowadays, several types of optical amplifiers can be used in a DWDM transmission system, including Semiconductor Optical Amplifiers (SOA), Doped fiber optical amplifiers (DFA) and Raman amplifiers (RA).
DWDM optical amplifier modules of Fiberstore which provide multi-function, low noise and perfect performance solutions are ideal for metro Dense Wavelength Division Multiplexing (DWDM) applications. Recently, there are two new types of DWDM system amplifiers launched on-line. They are the Raman Amplifier and Inter-stage DCM supported EDFA Amplifier. Fiberstore blog today will bring you to know much about all of our DWDM system amplifier solutions.
Before these two new types of DWDM system amplifiers launched, there are three types offered in Fiberstore and always subject to the user’s recognition and praise. They respectively are Booster Amplifier, In-line Amplifier and Pre-Amplifier. Next, let’s have a review of them one by one.
DWDM-EDFA-BA Series are booster amplifiers which operate at the transmission side of the link. It features high input power, high output power, and medium optical gain. Boosters are designed to amplify aggregated optical input power for reach extension. Software control is standard via an RS-232 interface for status monitoring and pump current adjustments.
DWDM-EDFA-LA Series are in-line amplifiers that operate in the middle of an optical link. It features medium to low input power, high output power, high optical gain, and a low noise figure. In-line amplifiers are designed for optical amplification between two network nodes on the main optical link. Software control is standard via an RS-232 interface for status monitoring and pump current adjustments.
DWDM-EDFA-PA Series are pre-amplifiers that operate at the receiving end of an optical link. It features medium to low input power, medium output power, and medium gain. Preamplifiers are designed for optical amplification to compensate for losses in a demultiplexer located near the optical receiver. Software control is standard via an RS-232 interface for status monitoring and pump current adjustments.
The following types are new update for DWDM system amplifiers, they may be a good choice for your amplifier requirements.
Raman amplifier has a wide gain spectrum, the gain bandwidth can be further broadened by the use of multi-wavelength optical pump. Fiberstore FS-1550 Series Raman amplifiers are suitable for the ultra-long haul optical fiber CATV transmission. Specifically in combination with the EDFA applications, the improvement of the indicators of the link is particularly evident, and get more flat gain spectra and higher optical signal to noise ratio (OSNR).
Inter-stage DCM supported EDFA Amplifier
FS-RM-1550 Series optical fiber amplifiers are special designed for long distance transmission. It can get better performance when it is used in conjunction with our DCM modules (DC1000 Series) that can perfectly solve the issues of the dispersion. With our solution, signals have been actual success transmits to 600km on digital television and to 400km on digital-analog hybrid television.
Fiberstore offers perfect solutions for WDM system and other networks. Want to get more optical amplifiers solutions or other solutions can visit our website.