Abstract:Q-switched laser is one of the important techniques to achieve high-energy laser pulses and greatly promotes the development and application of the field of optical engineering. With the modulation of cavity loss by optical switch in the laser cavity, the energy output by the laser is compressed into a pulse with a very short duration. For passively Q-switched lasers, saturable absorbers (SAs) with nonlinear saturable absorption are commonly used as optical switches.In recent years, 2D materials are used widel… Show more
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