2 results about "Saturation intensity" patented technology

This application belongs to the field of saturable absorber technology, and particularly relates to a saturable absorber based on tantalum arsenide quantum dots, its preparation method, and a mode-locked fiber laser. The saturable absorber provided by this application includes a tapered optical fiber and tantalum arsenide quantum dots loaded thereon. The tantalum arsenide quantum dots have excellent nonlinear optical properties and saturation intensity, so when the laser passes through the tantalum arsenide quantum dots on the saturable absorber, the laser reaches saturation quickly, enabling the output of ultrafast laser with a repetition frequency and stable laser mode-locked signal, thereby solving the technical problem of low performance of saturable absorbers based on two-dimensional materials in the prior art.

This application belongs to the field of saturable absorbers, and particularly relates to a saturable absorber based on tantalum nitride quantum dots, its preparation method, and a mode-locked fiber laser. The tantalum nitride quantum dots in the saturable absorber provided by this application, as topological half-metals, exhibit excellent optical properties and saturation intensity. When a laser beam passes through the tantalum nitride quantum dots on the saturable absorber, the laser can quickly reach saturation, enabling the output of ultrafast lasers with a repetition frequency and stable laser mode-locking signal. This solves the technical problem of low performance in existing saturable absorbers based on two-dimensional materials.