We proposed two kinds of visible light communication(VLC) systems which respectively based on 64QAM/square geo-metrical shaping(SGS) 128QAM time domain hybrid modulation scheme (SGSHY) and 64QAM/128QAM time domain hybrid mod-ulation scheme (REGHY). These two systems can operate around specific forward error correction (FEC) threshold and maximize the achievable information rate (AIR) of the sys-tem. The principles of SGSHY and REGHY are proposed in detail, which has very low computation complexity compared with prob-abilistic shaping. The SGSHY outperforms REGHY at high peak to peak voltage (Vpp). Experimental results show that at high Vpp like 1.4V, which means the system is suffer-ing from high nonlinear distortion, the AIR of SGSHY outperforms that of REGHY by 0.12Gb/s at the 2×10-2 FEC threshold. The AIR of the REGHY is at most 0.36Gb/s higher than that of 64QAM at 0.8V Vpp and 7％ FEC threshold, while the (achievable information rate) AIR of SGSHY is at most 0.40Gb/s high-er than that of 64QAM at 1.4V Vpp and 20％ FEC threshold.