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We report our recent progress on analog radio-over-fiber technology for mobile fronthaul applications in this invited talk from two perspectives: capacity expansion and signal quality enhancement. We first introduce our high-capacity fronthaul transmission experiment achieving >200-Gbps using a commercial transmitter optical subassembly (TOSA) module. Then, we introduce high-fidelity fronthaul transmission using optical angle modulation. Using these key techniques, it becomes possible to implement high-capacity and high-fidelity fronthaul systems.
S. Ishimura,H. Takahashi,R. Inohara,K. Nishimura,T. Tsuritani, andM. Suzuki
"High-capacity and high-fidelity analog radio-over-fiber mobile fronthaul", Proc. SPIE 12027, Metro and Data Center Optical Networks and Short-Reach Links V, 120270M (3 March 2022); https://doi.org/10.1117/12.2614740
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S. Ishimura, H. Takahashi, R. Inohara, K. Nishimura, T. Tsuritani, M. Suzuki, "High-capacity and high-fidelity analog radio-over-fiber mobile fronthaul," Proc. SPIE 12027, Metro and Data Center Optical Networks and Short-Reach Links V, 120270M (3 March 2022); https://doi.org/10.1117/12.2614740