Journal
IEEE PHOTONICS JOURNAL
Volume 8, Issue 4, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2016.2594207
Keywords
Multiplexing; mode conversion; fiber optics communications; all-fiber devices
Funding
- National Basic Research Program of China (973 Program) [2014CB340102, 2014CB340101]
- National Natural Science Foundation of China [61475022, 61505011, 61331008]
- Fundamental Research Fund of State Key Laboratory of IPOC (BUPT)
- Fundamental Research Funds for the Central Universities
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In this paper, the LP11 mode evolution in a few mode-polarization maintaining fiber is experimentally investigated. Selective conversion from the LP11a/LP11b mode to the LP11b/LP11a, OAM(+1), and OAM(-1) modes are demonstrated with varying wavelengths and fiber lengths. This property may have nice applications in spatial division multiplexing (SDM) systems, and one of them, i.e., the all-fiber compact and robust scalar orbital angular momentum (OAM) generator, which is cascaded by a mode-selective coupler and a few mode-polarization maintaining fiber, is also demonstrated with expected performance for conversion between LP01 mode and OAM(+1)/OAM(-1).
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