| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Analysis and Simulation of Adiabatic Bend Transitions in Optical Fibers |
| YAO Lei, LOU Shu-Qin, JIAN Shui-Sheng |
| Institute of Lightwave Technology, Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044 |
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| Cite this article: |
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YAO Lei, LOU Shu-Qin, JIAN Shui-Sheng 2009 Chin. Phys. Lett. 26 074213 |
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Abstract A low-loss criterion for bend transitions in optical fibers is proposed. An optical fiber can be tightly bent with low loss to be adiabatic for the fundamental mode, provided that an approximate upper bound on the rate of change of bend curvature for a given bend curvature is satisfied. Two typical adiabatic bend transition paths, the optimum profile and linear profile, are analyzed and studied numerically. A realizable adiabatic transition with an Archimedean spiral profile is introduced for low bend loss in tightly bent optical fibers. Design of the transitions is based on modeling of the propagation and coupling characteristics of the core and cladding modes, which clearly illustrate the physical processes involved.
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| Keywords:
42.25.Bs
42.81.Dp
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Received: 24 March 2009
Published: 02 July 2009
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| PACS: |
42.25.Bs
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(Wave propagation, transmission and absorption)
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42.81.Dp
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(Propagation, scattering, and losses; solitons)
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[1] Marcuse D 1976 J. Opt. Soc. Am. 66 216
[2] Snyder A W and Love J D 1983 Optical WaveguideTheory (London: Chapman {\& Hall)
[3] Taylor H F 1984 J. Lightwave Technol. 2 617
[4] Harris A J and Castle P F 1986 J. Lightwave Technol 4 34
[5] Faustini L and Martini G 1997 J. Lightwave Technol. 15 671
[6] Love J D and Durniak C 2007 IEEE Photon. Technol.Lett. 19 1257
[7] Himeno K, Matsuo S, Guan N and Wada A 2005 J.Lightwave Technol. 23 3494
[8] Gauthier R C and Ross C 1997 Appl. Opt. 366264
[9] Love J D, Henry W M, Stewart W J, Black R J, Lacroix Sand Gonthier F 1991 IEE Proc. J.: Optoelectron. 138343
[10] Yao L, Birks T A and Knight J C 2009 Opt. Express 17 2962 |
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