What is the Er glass fiber amplifier?
Er glass fiber amplifier - Laser Crylink
In telecommunication applications, the emission of Er3+ at 1530 nm has gotten a lot of interest. Because it's in the third window of order to transmit data. In Er3+ doped fiber optical amplifiers, this emission is essential for information transport, and it is frequently employed in wavelength division multiplexing networks.
The ion exchange method can be used to make high gain per unit length, high output power, wide bandwidth, noise close to the quantum limit, independent of polarization of the optical transmission waveguide amplifier. At the same pump power, the optimal length of phosphate-based fiber amplifier is shorter than the quartz glass-based fiber amplifier.
The main components of device are:
Pump input
Pump/signal multiplexer
Undoped silicate glass
signal input
Power amplifier
Amplified signal output
Er-doped phosphate glass
The Yb takes a majority of the pump energy and immediately transmits it to the nearby Er in the Er and Yb co-doping system. The possibility of transition increases when the phonon power in the phosphate glass matrix increases from 4I11/2–4I13/2, and the energy is reversed from Er to Yb. Yb has a larger absorption band (800nm-1100nm) as well as a bigger absorption cross section. As a result, Yb-doped glass fibers can broaden the pump wavelength range. A laser diode is commonly used for the pump light source.
Feature
High gain
Small batch
Low cost
Easy to integrate
Good chemical stability
Application
All-optical communication
Optical add/drop module
Signal monitoring
Channel equalization equipment
DWDM channel
Cross-connect module
Verdict
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