In this paper we propose and demonstrate a novel all-fiber fused-type mode selective coupler (MSC) that capable of converting LP01 mode to LP11 mode with high efficiency and purity. Unlike other coupler fabrication techniques for which single mode fiber (or few mode fiber) must be pre-tapered, the advantage of our proposed coupler is that pre-tapering is not required. Two different fibers of the MSC have the same diameter. We achieve LP11 mode with a high modal purity of > 90% and a coupling efficiency of >20%, with a low insertion loss of about 0.3 dB at the wavelength of 1064 nm.
|Title of host publication||ICOCN 2017 - 16th International Conference on Optical Communications and Networks|
|Number of pages||3|
|Publication status||E-pub ahead of print - 1 Dec 2017|
|Event||16th International Conference on Optical Communications and Networks, ICOCN 2017 - Wuzhen, China|
Duration: 7 Aug 2017 → 10 Aug 2017
|Conference||16th International Conference on Optical Communications and Networks, ICOCN 2017|
|Period||7/08/17 → 10/08/17|
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Funding: National Science Foundation of Jiangsu Province (Nos. BK20150858,
BK20161521), NUPTSF (Nos. NY214059, NY213083), the Distinguished Professor Project of Jiangsu (No. RK002STP14001), the Six Talent Peaks Project in
Jiangsu Province (No. 2015-XCL-023), the Talents Projects in Nanjing University of Posts and Telecommunications (Nos. NY214002, NY215002).
- Few mode fiber
- Mode selective coupler
- Phase match
- Weak fusion