Active-passive pulse laser based on gold nanobipyramids at 1.3 μm wavelength
Two-dimensional (2D) materials have attracted intense attention in photonics and optoelectronics for their excellent nonlinear characteristics and is applied for the generation of laser pulse. Here, a active-passive Nd:GdVO4 1.3 μm laser is realized by using an acousto-optic modulator and gold nanobipyramids absorber. The pulse width of 150.5 ns is obtained in the doubly Q-switched laser. The compression ratio and enhancement time are 82.6 % and 16. The doubly Q-switched technology compresses the pulse width, improves the peak power and stabilizes the pulse, illustrating the doubly modulation technology opens the door of controllable ultrafast lasers based on 2D materials.
wang cong,Peng Qian,Xin Linlin,Liu Jie. Active-passive pulse laser based on gold nanobipyramids at 1.3 μm wavelength[J].Chinese Optics Letters,2019,17(2):02.