Research on mode division multiplexer with graded-index distribution, low loss and low crosstalk
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A graded-index mode division multiplexer with low loss and low crosstalk is proposed. The transmission channel adopts a pure silica core with large effective area to achieve low attenuation, which effectively reduces the splicing loss with pure silica core few-mode transmission fiber. Low differential mode group delay is realized by using graded-index distribution. Also the effective index difference of the modes is greater than 0.5×10−3 to ensure low crosstalk between modes. The performance of the mode division multiplexer is investigated using the beam propagation method and full-vector finite element method. The result shows that the coupling efficiency of multiplexer is better than −0.479 dB, and the extinction ratio is higher than 31.2 dB in the wavelength of 1 400–1 700 nm. In C band, the average coupling efficiency of all mode channels of multiplexer is better than that of −0.140 dB, which shows flatness. The proposed scheme is an effective way to implement a multiplexer with low crosstalk, low loss, low fusion loss, high coupling efficiency, high extinction ratio and wide operating band.
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- Liu H, Wen H, Zacarias J C A, Antonio-Lopez J E, Wang N and Sillard P, Demonstration of Stable 3×10 Gb/s Mode Group-Multiplexed Transmission over a 20km Few-Mode Fiber Using Photonic Lanterns, Optical Fiber Communication Conference, W4J.2 (2018).Google Scholar
- Hongjun Zheng, Xin Li and Chenglin Bai, Transmission of Chirped Pulse in Optical Fibers, Beijing: Science Press 1 (2018). (in Chinese)Google Scholar
- Yu D, Fu S, Tang M and Liu D, Photonics Journal 7, 7800708 (2015).Google Scholar
- Velázquez-Benítez A M, Antonio-López J E, Alvarado-Zacarías J C and Lopez-Galmiche G, Scaling the Fabrication of Higher Order Photonic Lanterns Using Micro Structured Preforms, European Conference on Optical Communication, 1 (2015).Google Scholar
- Shi J, Study on Mode Division Multiplexing Technology in Few-Mode Fiber, Jilin University (2013). (in Chinese)Google Scholar
- Makovejs S, Roberts C, Palacios F and Matthews H B, Record-Low (0.1460 dB/km) Attenuation Ultra-Large Effective Area Optical Fiber for Submarine Applications, Optical Fiber Communications Conference and Exhibition, Th5A.2 (2015).Google Scholar
- Yuki Kawaguchi, Yoshinori Yamamoto, Masaaki Hirano and Sasaki T, Low Similar Splice Loss of Aeff-Enlarged Pure-Silica-Core Fiber, OptoElectronics and Communications Conference, ThS3_6 (2013).Google Scholar
- Sillard P and Molin D, A Review of Few-Mode Fibers for Space-Division Multiplexed Transmissions, 39th European Conference and Exhibition on Optical Communication, 1 (2013).Google Scholar