Polarization maintaining optical fiber amplifier with high safety

The invention relates to the technical field of lasers, and discloses a high-safety polarization-maintaining optical fiber amplifier which comprises a polarization-maintaining optical fiber amplifier body, a protective shell is arranged outside the polarization-maintaining optical fiber amplifier body, and supporting legs are fixedly connected to the four corners of the lower surface of the protective shell. Protection mechanisms are arranged on the front face and the back face of the protection shell, heat dissipation mechanisms are arranged on the left side and the right side of the polarization maintaining optical fiber amplifier body, and a fixing mechanism is arranged above the polarization maintaining optical fiber amplifier body. According to the high-safety polarization-maintaining optical fiber amplifier, the protection shell is arranged outside the polarization-maintaining optical fiber amplifier body, the protection shell covers the polarization-maintaining optical fiber amplifier body, the baffles