Observation of Blowing out in Low Loss Passive Optical Fuse Formed in Silica Glass Optical Fiber Circuit
Observation of Blowing out in Low Loss Passive Optical Fuse Formed in Silica Glass Optical Fiber Circuit
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DOI：
10.1143/jjap.43.l728
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发表时间：
2004-05
影响因子：
1.5
通讯作者：
S. Todoroki;S. Inoue
中科院分区：
文献类型：
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作者：
S. Todoroki;S. Inoue
通过在碳涂层单模石英光纤电路中插入50微米厚的TeO2玻璃层，实现了低损耗(小于1dB)的无源光纤熔断器。在实时观察其熔融作用的基础上，探讨了其失去透明度的机理。观察到的损耗降是电路的去耦合和来自燃烧涂层的瞬时光通量的重叠。通过消除插入损耗，预计可以提高吹灭的临界输入功率。
Low loss (less than 1dB) passive optical fuses were realized by inserting 50-µm-thick TeO2 glass layer into a single-mode silica glass fiber circuit with carbon coating. On the basis of real-time observation of their fusing action, the mechanism of losing its transparency is discussed. The observed loss drop is found to be an overlap of decoupling of the circuit and transient light flux from the burned coating. The critical input power to blow out is expected to be raised by eliminating its insertion loss.