Optical fiber Raman amplifier is used to provide gain for optical signal by using Raman effect in quartz fiber, and realize high gain and low noise amplification for optical signal in C or L band, which can effectively compensate the attenuation of optical signal in long-distance optical fiber transmission. It is usually used in long-distance optical transmission system, distributed optical fiber sensing, and dense wavelength division multiplexing optical transmission system.
Ytterbium-doped Fiber Amplifier (YDFA) generates gain by pumping Yb doped fiber with semiconductor laser, which is used to amplify laser signal in 1030~1100nm band. Hi1060 single-mode fiber or PM980 polarization maintaining fiber output. The output power is continuously adjustable, which has the advantages of high gain and low noise. The desktop YDFA is convenient for experimental operation. The user can adjust the pump current and output power through the front panel buttons.
