Silicon photonic devices realized on refractive index engineered subwavelength grating waveguides-A review

NL Kazanskiy, MA Butt, SN Khonina - Optics & Laser Technology, 2021 - Elsevier
… modal characteristics of the subwavelength grating (SWG) … the subwavelength grating (SWG)
waveguides based devices … for mid-infrared applications, filters, and fiber-to-chip couplers. …

Bragg filter bandwidth engineering in subwavelength grating metamaterial waveguides

P Cheben, J Čtyroký, JH Schmid, S Wang, J Lapointe… - Optics letters, 2019 - opg.optica.org
… to accurately control the grating strength and achieve narrow … Bragg grating geometry utilizing
a silicon subwavelength gratingdevice, the waveguide core is formed by a subwavelength

O-band subwavelength grating filters in a monolithic photonics technology

FO Afzal, Y Bian, B Peng, S Hu… - IEEE Photonics …, 2020 - ieeexplore.ieee.org
… SWG filter in GF’s 90 nm technology, we designed devicesdevice layer, buried oxide layer
and doped oxide (BPSG) cladding, illustrated in Fig. 2(a). We additionally limited our devices

Subwavelength grating waveguide filter based on cladding modulation with a phase-change material grating

SH Badri, SG Farkoush - Applied Optics, 2021 - opg.optica.org
… the designed devices. We present an optical filter based on a silicon subwavelength grating
(… and their distance from the SWG core on the filter’s central wavelength and bandwidth are …

A review of silicon subwavelength gratings: building break-through devices with anisotropic metamaterials

JM Luque-González, A Sánchez-Postigo… - …, 2021 - degruyter.com
… Finally, we illustrate the design of two ground-breaking devices in more detail and discuss
the prospects of subwavelength gratings as a tool … 3.5 Narrowband spectral filtering devices

Subwavelength grating waveguide structures proposed on the low-cost silica–titania platform for optical filtering and refractive index sensing applications

MA Butt, C Tyszkiewicz, K Wojtasik… - International Journal of …, 2022 - mdpi.com
… periodicity of the subwavelength grating. SWG waveguide with a certain grating period or duty
… The device performance of the SWG waveguide NIR filter is discussed in terms of ER and …

Efficient mode converters and filters using asymmetrical directional couplers with subwavelength gratings

X Chen, X Shi, P Qiu, Z Dai, Y Yu, X Song, H Zhang… - Optics Letters, 2022 - opg.optica.org
… demonstrate a device, enabling mode conversion and filtering simultaneously, which is …
couplers with subwavelength gratings, in a small footprint of 14.7 µm × 1.42 µm. The device can …

Spectral characteristics of broad band-rejection filter based on Bragg grating, one-dimensional photonic crystal, and subwavelength grating waveguide

SN Khonina, NL Kazanskiy, MA Butt - Physica Scripta, 2021 - iopscience.iop.org
… Wavelength filtering optical devices are primary elements that are used in applications such
as fluorescence microscopy, switching, spectroscopy, wavelength division multiplexing, and …

Integrated subwavelength gratings on a lithium niobate on insulator platform for mode and polarization manipulation

X Han, L Chen, Y Jiang, A Frigg, H Xiao… - Laser & Photonics …, 2022 - Wiley Online Library
… crosstalk when dozens to hundreds of devices are cascaded, resulting in serious signal
degradation. [ 6 ] Mode filters are a type of device that can filter the undesired modes out of the …

Integrated optical linear edge filters using apodized sub-wavelength grating waveguides in SOI

R Sumi, ND Gupta, BK Das - IEEE Photonics Technology …, 2019 - ieeexplore.ieee.org
… Further we analyzed the edge filter characteristics of the second set of devices and observed
that λedge shifts towards longer wavelengths with increasing Wm (see Fig. 5(b)). Though …