▎ 摘　　要

NOVELTY - The generator has a light isolator (7) whose output end is connected with a common end of an optical wavelength division multiplexer (9) through an ytterbium-doped optical fiber (8). The optical wavelength division multiplexer is connected to an output end of a pump light source (10). A 1060 nm end of the optical wavelength division multiplexer is connected with an end of a tunable optic filter (11). An optical fiber group (2) is formed with N single-mode optical fiber with different lengths. An output end of a phase comparator circuit (22) is connected with a single chip (23) that is fixed with a controllable frequency source (25), where an electrolytic capacitor is formed with an output port of the controllable frequency source. USE - Graphene saturable absorber based multi-soliton generator. ADVANTAGE - The generator can generate multiple different types of optical solitons and ensure convenient to use and stable output optical soliton center wavelength when environmental parameters are changed. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of a graphene saturable absorber based multi-soliton generator. '(Drawing includes non-English language text)' Optical fiber group (2) Light isolator (7) Ytterbium-doped optical fiber (8) Optical wavelength division multiplexer (9) Pump light source (10) Tunable optic filter (11) Phase comparator circuit (22) Single chip (23) Controllable frequency source (25)