Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Metamaterial-waveguide bends with effective bend radius < λ0/2

Abstract

We designed, fabricated, and characterized broadband, efficient, all-dielectric metamaterial-waveguide bends (MWBs) that redirect light by 180 deg. The footprint of each MWB is 3μm×3μm and redirection is achieved for single-mode waveguides spaced by 1.3 μm, which corresponds to an effective bend radius of 0.65 μm (<λ0/2 for λ0=1.55μm). The designed and measured transmission efficiencies are >80% and 70%, respectively. Furthermore, the MWBs have an operating bandwidth >66nm (design) and >56nm (experiments). Our design methodology that incorporates fabrication constraints enables highly robust devices. The methodology can be extended to the general routing of light in tight spaces for large-scale photonic integration.

© 2015 Optical Society of America

Full Article  |  PDF Article
More Like This
Optimal Bezier curve transition for low-loss ultra-compact S-bends

Dan Yi, Yaojing Zhang, and Hon Ki Tsang
Opt. Lett. 46(4) 876-879 (2021)

Very sharp adiabatic bends based on an inverse design

Yingjie Liu, Wenzhao Sun, Hucheng Xie, Nan Zhang, Ke Xu, Yong Yao, Shumin Xiao, and Qinghai Song
Opt. Lett. 43(11) 2482-2485 (2018)

Manipulating light polarizations with a hyperbolic metamaterial waveguide

Hua Zhu, Xiang Yin, Lin Chen, Zhongshu Zhu, and Xun Li
Opt. Lett. 40(20) 4595-4598 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Supplementary Material (2)

NameDescription
Visualization 1: MOV (3463 KB)      Animation
Visualization 2: MOV (2138 KB)      Animation

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved