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

Compact high-contrast silicon optical filter using all-passive and CROW Fano nanobeam resonators

Not Accessible

Your library or personal account may give you access

Abstract

We propose and experimentally demonstrate a high-order coupled-resonator optical waveguide (CROW) nanobeam filter with semi-symmetrical Fano resonance enhancement. Thanks to the tight arrangement of multiple nanobeams and assistance of the partial transmission element, the designed filter has a high-contrast transmission and low insertion loss. Finally, the fabricated filter has a compact size of ${20}\;\unicode{x00B5}{\rm m} \times {10}\;\unicode{x00B5}{\rm m}$, a high extinction ratio as much as 70 dB, and an insertion loss as low as 1 dB. This filter shows a passive structure without thermal control configuration for calibration on each resonator. This compact filter can be a basic building block for various applications requiring high extinction ratio filtering, such as single-photon source filtering of integrated photon chips.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
High-contrast and low-power all-optical switch using Fano resonance based on a silicon nanobeam cavity

Gaoneng Dong, Yilun Wang, and Xinliang Zhang
Opt. Lett. 43(24) 5977-5980 (2018)

Ultracompact optical switch using a single semisymmetric Fano nanobeam cavity

Ziwei Cheng, Jianji Dong, and Xinliang Zhang
Opt. Lett. 45(8) 2363-2366 (2020)

Compact high-extinction tunable CROW filters for integrated quantum photonic circuits

Rakesh Ranjan Kumar, Xinru Wu, and Hon Ki Tsang
Opt. Lett. 45(6) 1289-1292 (2020)

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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 (5)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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

Equations (3)

You do not have subscription access to this journal. Equations 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

Select as filters


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