通信用光ファイバに関する話題として、孔を空けて特異な物性を引き出すホーリーファイバと、光による破壊の連鎖で孔が空いていくファイバフューズを紹介する。波長変換素子や超広帯域光源への応用を目指した、非線型光学係数の大きい材料を使ったフォトニック結晶光ファイバの最近の動向を概観す...

ファイバフューズ現象の発見から今に至る歴史的背景、発生のメカニズム、生成する空孔列が特異な形状となる理由を、筆者の最新の研究に触れつつ簡潔にまとめた。

Low loss (less than 1 dB) passive optical fuses were realized by inserting 50-um-thick TeO2 glass layer into a single-mode silica glass f...

Light-induced breakdown of low-melting glass with thickness of 50 um is demonstrated, which was coated with carbon paint and formed betwe...

Excessive-light-induced melt down was observed in a carbon-coated TeO2 glass segment formed between a pair of optical fiber end-faces. T...

Less than 1.5dB of insertion loss was realized in an optical coupling structure in which two TEC (Thermal-diffusion Expanded Core) fibers...

Several nano liters of tellurite glass melt was inserted and quenched between two ends of silica glass optical fibers to form a optical ...