As the increasing deployment of multiple LiDAR units within shared environments has introduced significant challenges， particularly due to mutual interference among coexisting systems. Such interference can cause substantial disruptions and elevate the risk of accidents， thereby rendering the mitigation of multi-LiDAR interference a critical research focus. This study proposes an innovative LiDAR scheme utilizing a wideband incoherent spontaneous emission noise source generated by a super-luminescent diode （SLD）， enabling parallel detection without reliance on complex modulation techniques. Through a filtering approach， the system achieves parallel output across multiple uncorrelated modes， which substantially enhances its anti-interference performance. Moreover， the implementation of multi-channel transmission and detection contributes to improved imaging speed. A four-channel parallel anti-interference LiDAR system was developed based on this concept， incorporating a fiber-optic array and a galvanometer for signal transmission and reception， and capable of three-dimensional imaging at a 0.3 m range. The system successfully reconstructed a target scene measuring 5 cm×7 cm， achieving a ranging accuracy of 1.6 mm. The system's anti-interference capability was further validated， demonstrating resilience against interference from analogous LiDAR signals with a signal-to-noise ratio up to 11.2 dB. The findings present a viable approach to enhancing the reliability and safety of LiDAR systems operating within complex， multi-device environments.