WSe2 as an optical modulator for multi-gigahertz mode-locked waveguide lasers
Graphene and other extraordinary two-dimensional materials together with recent advances in optical modulators have set the foundations for the widespread applications of next-generation optoelectronic devices. In this paper, we report on the high-performance fundamentally mode-locked waveguide laser modulated by CVD-grown WSe2 as a saturable absorber. By incorporating WSe2 sample into a monolithic Nd:YVO4 waveguide platform, 6.526 GHz picosecond pulsed laser generation have been achieved at the wavelength of 1 μm with pulse duration as short as 47 ps. This work indicates promising applications of WSe2 for the development of on-chip ultrafast photonics devices.
Li Ziqi,Li Rang,Pang Chi,Zhang Yuxia,Yu Haohai,Chen Feng. WSe2 as an optical modulator for multi-gigahertz mode-locked waveguide lasers[J].Chinese Optics Letters,2019,17(2):02.