MID-INFRARED OPTICAL FREQUENCY COMB GENERATION SYSTEM AND METHOD BASED ON MANIPULATION OF MULTI-PHOTON ABSORPTION EFFECT

摘要

The present application relates to a mid-infrared (MIR) optical frequency comb (OFC) generation system and method based on manipulation of the multi-photon absorption (MPA) effect, which can break through the repetition-rate limitation for traditional systems and restricted bandwidth as well as high dependence on high-performance pump sources for microcavity-based frequency combs. The system includes a pump light source unit for providing a pump laser, a microring resonator (MRR) unit for broadband comb generation through nonlinear four-wave-mixing process, and an MPA effect control unit for realizing the MIR soliton-state OFC by controlling the loaded voltage or current on the MRR unit. The proposed system and operation method have advantages of being simple in structure, economic for use, and easy to implement for broadband low-noise frequency comb generation.