supported by the National Natural Science Foundation of China(61735017,61822510,62020106002,and 62005250);the National Key Basic Research Program of China(2021YFC2401403);Major Scientific Research Project of Zhejiang Lab(2019MC0AD02)。
Multimode fiber(MMF)possesses intrinsic,ultrathin,noninvasive geometric characteristics and high mode density optical characteristics,having great potential in endoscopic imaging[1,2].A typical MMF endoscopic imaging ...