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Based on the laser amplification principle of the
optical signal in the erbium-doped fiber, the L-band high power EDFA
realizes the high power output of 1570~1605nm laser by using a
unique multi-stage optical amplification design and a reliable high
power laser cooling process. With the advantages of high power and
low noise, it can be used in optical fiber communication system,
optical fiber sensing, laser radar, etc.
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