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The working principle of Mopa fiber laser marker

The main oscillation power amplification, MOPA for short, is to couple the seed signal light and pump light with high beam quality into the double-clad fiber for amplification in a certain way, so as to realize the high power amplification of the seed light source. Its outstanding features are: The main function of the main oscillator is to produce high-quality seed light, and the output power can be large or small, so the output light can easily achieve the required time domain and frequency domain characteristics and maintain good beam quality; power amplification Part of the main function is to amplify the seed light, ensuring the high beam quality of the output light while achieving high power and high energy output, that is, it combines the good pulse characteristics of the low-power seed source and the double-clad amplifier. The advantages of high-power amplification characteristics.