An optical fibre tip with double tapers etched by the interfacial layer

@inproceedings{Liu2019AnOF,
  title={An optical fibre tip with double tapers etched by the interfacial layer},
  author={Zi Long Liu and Nao Zhang and Yu Tang and Yaxin Liu and Bo Zhang},
  year={2019}
}
We fabricate double-tapered optical fibre tips by the interfacial layer etching method. The optical fibre is first etched by means of meniscus-based etching to obtain one-tapered fibre tip, which is etched again by the interfacial layer between the etchant and the overlay to obtain a double-tapered tip. The formation mechanism of the second taper is analysed. The impacts of the interfacial layer etching time, HF concentration and the overlay on the second cone angle are discussed. The second… CONTINUE READING