光学学报, 2019, 39 (10): 1006008, 网络出版: 2019-10-09 复制并引用该论文  本文已被引 2 次  被引通知

图 & 表

图 1. 双沟槽辅助瓣状光纤结构图

Fig. 1. Structure of double-trench-assisted fan-segmented cladding fiber

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图 2. 双沟槽辅助扇形瓣状光纤的等效折射率图

Fig. 2. Equivalent refractive index profile of double-trench-assisted fan-segmented cladding fiber

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图 3. 扇形瓣状光纤结构图。(a) ST-FSCF;(b) FSCF

Fig. 3. Structures of fan-segmented cladding fibers. (a) ST-FSCF; (b) FSCF

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图 4. 纤芯半径对光纤性能的影响。(a)泄漏损耗随纤芯半径变化图;(b)模场面积和损耗比随纤芯半径变化图

Fig. 4. Effect of core radius on fiber properties. (a) Leakage loss as a function of core radius; (b) mode area and loss ratio as functions of core radius

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图 5. 弯曲方向对光纤性能的影响 (a)泄漏损耗随弯曲方向变化图;(b)模场面积和损耗比随弯曲方向变化图

Fig. 5. Effect of bending orientation on fiber properties. (a) Leakage loss as a function of bending orientation; (b) mode area and loss ratio as functions of bending orientation

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图 6. 在不同弯曲方向时LP₀₁, LP_11v, LP_11h和LP₂₁模场分布图。(a) φ=0°;(b) φ=22.5°

Fig. 6. Mode field distributions of LP₀₁, LP_11v, LP_11h, and LP₂₁ modes at different bending orientations. (a) φ=0°; (b) φ=22.5°

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图 7. 弯曲半径对光纤性能的影响。(a)泄漏损耗随弯曲半径变化图;(b)模场面积和损耗比随弯曲半径变化图

Fig. 7. Effect of bending radius on fiber properties. (a) Leakage loss as a function of bending radius; (b) mode area and loss ratio as functions of bending radius

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图 8. 弯曲损耗和模场面积随沟槽宽度的变化图。(a) t₁;(b) t₂

Fig. 8. Bending loss and mode area as functions of trench width. (a) t₁; (b) t₂

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图 9. 弯曲损耗和模场面积随谐振环厚度的变化图。(a) d₁;(b) d₂

Fig. 9. Bending loss and mode area as functions of resonant ring thickness. (a) d₁; (b) d₂

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图 10. 波长对光纤性能的影响 (a)泄漏损耗随波长变化图;(b)模场面积和损耗比随波长变化图

Fig. 10. Effect of wavelength on fiber properties. (a) Leakage loss as a function of wavelength; (b) mode area and loss ratio as functions of wavelength

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图 11. 弯曲损耗和模场面积随折射率的变化图。(a) Δn₁;(b) Δn₂

Fig. 11. Bending loss and mode area as functions of index difference. (a) Δn₁; (b) Δn₂

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图 12. 谐振环d₁和d₂对光纤性能的综合影响。(a)基模损耗;(b)最小高阶模损耗;(c)损耗比

Fig. 12. Combined effect of resonant ring thicknesses d₁ and d₂ on fiber properties. (a) Loss of FM; (b) minimal loss of HOM; (c) loss ratio

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表 1本论文的工作(DT-FSCF)和以前工作(FSCF、ST-FSCF)的性能对比

Table1. Comparison of properties of current work (DT-FSCF) and previous works (FSCF,ST-FSCF)

Property FSCF ST-FSCF DT-FSCF Core radius a /μm 21/22/23/24 22/23/24/25 22/23/24/25 Index difference Δn1 0.002 0.002 0.002 Index difference Δn2 0 0.005 0.005 Trench width t1 /μm 0 2 2 Trench width t2 /μm 0 0 2 Resonant ring thickness d1 /μm 0 9 9 Resonant ring thickness d2 /μm 0 0 12 Fan segment angle θ /(°) 45 45 45 Cladding radius b /μm 62.5 125 125 Mode area /μm2 885/948/1011/1074 909/971/1034/1097 908/970/1033/1096 FM /(dB·m-1) 1.68/1.31/1.04/0.86 0.096/0.077/0.061/0.050 0.019/0.014/0.010/0.008 Lowest-HOMS /(dB·m-1) 24.7/17.4/12.3/9.1 3.16/1.93/1.24/0.85 6.74/1.53/3.64/1.27 Loss ratio 14/13/11/10/9 33/25/20/17 354/109//364/158

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王冠利, 宁提纲, 郑晶晶, 李晶, 许建, 魏淮, 裴丽, 马绍朔. 新型双沟槽抗弯曲大模场扇形瓣状光纤研究[J]. 光学学报, 2019, 39(10): 1006008. Guanli Wang, Tigang Ning, Jingjing Zheng, Jing Li, Jian Xu, Huai Wei, Li Pei, Shaoshuo Ma. Novel Bend-Resistant Large-Mode-Area Fan-Segmented Cladding Fiber with Double Trenches[J]. Acta Optica Sinica, 2019, 39(10): 1006008.