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实用新型
CN204575890U 一种应力渐变型细径熊猫保偏光纤 失效 - 放弃

一种应力渐变型细径熊猫保偏光纤
摘要：
本实用新型一种应力渐变型细径熊猫保偏光纤，所述光纤包含有包裹于包层（102）中心的纤芯（101），所述包层（102）还设置有应力区（103），该应力区（103）对称设置于纤芯（101）的两侧，其特征在于：该应力区（103）中心设置有加深应力圆（104），上述加深应力圆（104）的折射率低于应力区（103）的折射率，且应力区（103）由外缘向中心折射率逐渐降低，所述纤芯（101）的直径D1∈（5μm，7μm）、包层（102）的直径D2∈（79μm，81μm）、应力区（103）的直径D3∈（15μm，30μm）。本实用新型涉及一种应力渐变型细径熊猫保偏光纤，既能保持高双折射，又降低应力区炸裂几率。
摘要（英）：

The utility model relates to a thin footpath panda polarization maintaining fiber of stress gradual change type, optic fibre includes fibre core (101) of wrapping up in covering (102) center, said covering (102) still are provided with stress block (103), and this stress block (103) symmetry sets up in the both sides of fibre core (101), its characterized in that: this stress block (103) center is provided with deepens stress circle (104), and above-mentioned refracting index of deepening stress circle (104) is less than the refracting index of stress block (103), and stress block (103) reduced by outer fringe centering refracting index gradually, the diameter D1 is an element of a set (5 mu m, 7 mu m) of said fibre core (101), the diameter D2 is an element of a set (79 mu m, 81 mu m) of covering (102), the diameter D3 is an element of a set (15 mu m, 30 mu m) of stress block (103) the utility model relates to a thin footpath panda polarization maintaining fiber of stress gradual change type can keep the high birefringence, reduces the fried probability that splits of stress block again

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