▎ 摘　　要

NOVELTY - The generator has a pump light source (1) connected to a 980nm end of a wavelength division multiplexer (2). A 1550nm end of the multiplexer is connected to an input end of a light coupler (3). An end of a light detector (13) is connected to an input end of an amplifying circuit (14). An end of a first polarization controller (4) is connected to an input end of a lithium niobate modulator (5). An output end of the modulator is connected to a first PZT piezoelectric ceramic layer (7). An end of a second polarization controller (24) is connected to a second PZT piezoelectric ceramic layer (19). USE - Graphene saturable absorber based active and passive hybrid mode-locked light pulse generator. ADVANTAGE - The generator is simple to operate, has high controlling accuracy, and utilizes an amplification circuit for amplifying a received signal so as to control the piezoelectric ceramic layer, effectively output optimized pulse and generate stable ultra-short light pulse in a convenient manner. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of a graphene saturable absorber based active and passive hybrid mode-locked light pulse generator. '(Drawing includes non-English language text)' Pump light source (1) Wavelength division multiplexer (2) Light coupler (3) Polarization controllers (4, 24) Lithium niobate modulator (5) PZT piezoelectric ceramic layers (7, 19) Light detector (13) Amplifying circuit (14)