[1] [1] 1余少华， 何炜. 光纤通信技术发展综述［J］. 中国科学（信息科学）， 2020， 50（9）： 1361-1376. doi: 10.1360/ssi-2020-0093YUSH H， HEW. Latest survey on optical fiber communication［J］. Scientia Sinica （Informationis）， 2020， 50（9）： 1361-1376. （in Chinese）. doi: 10.1360/ssi-2020-0093

[2] D J RICHARDSON, J M FINI, L E NELSON. Space-division multiplexing in optical fibres. Nature Photonics, 7, 354-362(2013).

[3] [3] 3王亚捷， 侯尚林， 雷景丽. C+L波段低损耗色散补偿19芯光子晶体光纤设计［J］. 光学 精密工程， 2022， 30（22）2860-2868. doi: 10.37188/ope.20223022.2860WANGY J， HOUSH L， LEIJ L. Design of 19-core photonic crystal fiber with low loss dispersion compensation in C+L band［J］. Opt. Precision Eng.， 2022， 30（22）： 2860-2868. （in Chinese）. doi: 10.37188/ope.20223022.2860

[4] [4] 4涂佳静， 李朝晖. 空分复用光纤研究综述［J］. 光学学报， 2021， 41（1）： 0106003. doi: 10.3788/aos202141.0106003TUJ J， LIZH H. Review of research on space division multiplexing optical fiber［J］. Acta Optica Sinica， 2021， 41（1）： 0106003. （in Chinese）. doi: 10.3788/aos202141.0106003

[5] T GONDA, K IMAMURA, M TSUKAMOTO et al. Design of multicore fiber having upgradability from standard single-mode fibers and its application. Journal of Lightwave Technology, 37, 396-403(2019).

[6] T MATSUI, P L PONDILLO, K NAKAJIMA. Weakly coupled multicore fiber technology， deployment， and systems. Proceedings of the IEEE, 110, 1772-1785(2022).

[7] T SATAKE, S NAGASAWA, M HUGHES et al. MPO-type single-mode multi-fiber connector： low-loss and high-return-loss intermateability of APC-MPO connectors. Optical Fiber Technology, 17, 17-30(2011).

[8] K WATANABE, T SAITO, K KAWASAKI et al. MPO type 8-multicore fiber connector with physical contact connection. Journal of Lightwave Technology, 34, 351-357(2016).

[9] T MORISHIMA, J ITO, T SHIMAZU et al. MCF-Enabled Ultra-High-Density 256-Core MT Connector and 96-Core Physical-Contact MPO Connector, 1-3(2017).

[10] K SAITO, T MATSUI, K NAKAJIMA et al. Multi-Core Fiber Connector with Precise Rotational Angle Alignment, 872-874(6).

[11] Y LEE, K TANAKA, E NOMOTO et al. Multi-Core Fiber Technology for Optical-Access and Short-Range Links, 1-2(27).

[12] O SHIMAKAWA, M SHIOZAKI, T SANO et al. Pluggable fan-out realizing physical-contact and low coupling loss for multi-core fiber, 1-3(2013).

[13] E NOMOTO, K HIRUMA, T SUGAWARA et al. SC-type multi-core optical-fiber connectors using a pressurization spring. Optical Review, 22, 679-685(2015).

[14] T MORISHIMA, K MANABE, S TOYOKAWA et al. Simple-structure low-loss multi-core fiber LC connector using an align-by-contact method. Optics Express, 29, 9157-9164(2021).

[15] [15] 15国家广播电视总局科技司. 光纤活动连接器技术要求和测量方法： GD/J 097-2020［S］. 北京：国家广播电视总局科技司，2020. doi: 10.25045/jpit.v11.i1.04Technical requirements and measurement methods for fibre optic connector：GD/J097-2020［S］. Beijing： Department of Science and Technology of National Radio and Television Administration， 2020. （in Chinese）. doi: 10.25045/jpit.v11.i1.04

[16] [16] 16王伟. 光纤连接器损耗机理及研磨抛光工艺研究［D］. 大连： 大连理工大学， 2017.WANGW. Research on Loss Mechanism and Lapping & Polishing Process for Optical Fiber Connectors［D］. Dalian： Dalian University of Technology， 2017. （in Chinese）

[17] K SHIKAMA, S YANAGI et al. Physical-contact conditions for multicore fiber optical connectors, 1-3(2013).

[18] R NAGASE, K SAKAIME, K WATANABE et al. MU-type multicore fiber connector. IEICE Transactions on Electronics, 1173-1177(2013).

[19] C KACHRIS, I TOMKOS. A survey on optical interconnects for data centers. IEEE Communications Surveys & Tutorials, 14, 1021-1036(2012).

[20] M J LI. Novel Optical fibers for data center applications, 9772, 22-28(2016).

[21] R NAGASE. Optical connectivities for multicore fiber, 1(2020).