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Based on the laser amplification principle of the
optical signal in the erbium-doped fiber, the high power
polarization preserving EDFA realizes the high power polarization
preserving output of 1570~1605nm laser by using a unique multi-stage
optical amplification device and a reliable high power laser cooling
process. It has the advantages of high power, high extinction ratio
and low noise, and can be used in optical fiber communication, laser
radar, etc.
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