This article presents a study on waveguide-integrated twisted bilayer graphene (tBLG) photodetectors, demonstrating high performance in optical communication applications. The researchers developed SiPh-integrated tBLG photodetectors with a photoresponsivity of 0.65 A/W at 1550 nm telecom wavelength, achieving a 3-dB bandwidth of over 65 GHz and a data rate of 50 Gbit/s. The high responsivity is attributed to enhanced optical absorption due to van Hove singularities in the tBLG band structure, which occurs at a 4.1° twist angle. The tBLG photodetectors exhibit uniform performance, with high responsivity (0.46 ± 0.07 A/W) and bandwidth (36 ± 2 GHz), showing promise for large-area integration with silicon photonics (SiPh). The study highlights the potential of tBLG as a material for heterogeneous integration with SiPh, given recent advances in wafer-scale growth and transfer of large-area tBLG. The tBLG photodetectors were fabricated on Si waveguides, with a GND-S-GND electrode configuration to collect photocurrent. The devices showed a significant enhancement in photocurrent compared to single-layer graphene (SLG) and AB-stacked bilayer graphene (BLG), with a photoresponsivity of 0.65 A/W at 0.5 V bias. The performance of the tBLG photodetectors was compared with other graphene-based photodetectors, showing superior results in terms of responsivity and bandwidth. The study also demonstrates the feasibility of large-area tBLG photodetector arrays, with eight devices showing consistent performance. The tBLG photodetectors have a small footprint and simple device configuration, making them suitable for high-speed data transmission. The results indicate that tBLG could serve as a promising candidate material for SiPh-based photodetectors, especially with the development of wafer-scale growth and transfer techniques. The study provides a comprehensive analysis of the structural and electronic properties of tBLG, as well as its performance in photodetection applications. The findings suggest that tBLG photodetectors could be integrated into future optical communication systems due to their high performance, low power consumption, and compatibility with SiPh.This article presents a study on waveguide-integrated twisted bilayer graphene (tBLG) photodetectors, demonstrating high performance in optical communication applications. The researchers developed SiPh-integrated tBLG photodetectors with a photoresponsivity of 0.65 A/W at 1550 nm telecom wavelength, achieving a 3-dB bandwidth of over 65 GHz and a data rate of 50 Gbit/s. The high responsivity is attributed to enhanced optical absorption due to van Hove singularities in the tBLG band structure, which occurs at a 4.1° twist angle. The tBLG photodetectors exhibit uniform performance, with high responsivity (0.46 ± 0.07 A/W) and bandwidth (36 ± 2 GHz), showing promise for large-area integration with silicon photonics (SiPh). The study highlights the potential of tBLG as a material for heterogeneous integration with SiPh, given recent advances in wafer-scale growth and transfer of large-area tBLG. The tBLG photodetectors were fabricated on Si waveguides, with a GND-S-GND electrode configuration to collect photocurrent. The devices showed a significant enhancement in photocurrent compared to single-layer graphene (SLG) and AB-stacked bilayer graphene (BLG), with a photoresponsivity of 0.65 A/W at 0.5 V bias. The performance of the tBLG photodetectors was compared with other graphene-based photodetectors, showing superior results in terms of responsivity and bandwidth. The study also demonstrates the feasibility of large-area tBLG photodetector arrays, with eight devices showing consistent performance. The tBLG photodetectors have a small footprint and simple device configuration, making them suitable for high-speed data transmission. The results indicate that tBLG could serve as a promising candidate material for SiPh-based photodetectors, especially with the development of wafer-scale growth and transfer techniques. The study provides a comprehensive analysis of the structural and electronic properties of tBLG, as well as its performance in photodetection applications. The findings suggest that tBLG photodetectors could be integrated into future optical communication systems due to their high performance, low power consumption, and compatibility with SiPh.