Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
  • (Optica Publishing Group, 2017),
  • paper CK_9_2

Silicon fibre nano-spike for robust coupling to silica fibres

Not Accessible

Your library or personal account may give you access

Abstract

Making use of the attractive properties of silicon (Si), a wide array of highly functional photonic devices have been demonstrated over the past few decades [1]. Although planar platforms are still the most prominent choice for integrated systems, more recently silicon fibres have gained increased attention due to their simple fabrication methods and flexible device designs [2]. However, despite their physical similarity to traditional single-mode fibres (SMFs), coupling light efficiently into and out of these devices remains a difficult task due to the high refractive index of the Si core, which results in significant reflection losses and a large mode mismatch. A few solutions have been proposed to overcome this integration challenge, including the use of microstructured fibre designs to better match the mode area [2] and chemical etchants to reduce the reflection at the interface [3], though so far no method has addressed both issues simultaneously. Thus a promising alternative solution would be to adapt the well-established inverse taper approach widely employed by the planar community [4], which is also gaining attention within the novel material fibre community [5]. The key idea behind this approach is that by decreasing the Si core to nanoscale dimensions at the facet, the guided mode spreads out to better match both the area and the effective index of the SMF mode. In this paper, we demonstrate the fabrication and optical characterization of the first Si fibre nano-spike which has been directly spliced to SMF.

© 2017 IEEE

PDF Article
More Like This
Interfacing Telecom Fibers and Silicon Core Fibers with Nano-Spikes for In-Fiber Silicon Devices

O. Aktas, H. Ren, A. F. J. Runge, A. C. Peacock, T. Hawkins, J. Ballato, and U. J. Gibson
W4K.6 Optical Fiber Communication Conference (OFC) 2018

Low-loss coupling of ribbon fibres to silica-on-silicon integrated optics using preferentially etched V-grooves

M.F. Grant, S. Day, and R. Bellerby
TuD6 Integrated Photonics Research (IPR) 1992

Thermally Expanded Core Fibers of 4-µm Mode Field Diameter for Low Loss Coupling with Silicon Photonic Devices

Takuya Oda, Keisuke Hirakawa, Kentaro Ichii, Satoshi Yamamoto, and Kazuhiko Aikawa
s0974 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2017

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved