Dispersionless coupling among optical waveguides by artificial gauge field

W Song, T Li, S Wu, Z Wang, C Chen, Y Chen… - Physical Review Letters, 2022 - APS
… , the coupling exhibits narrow band and highly structure-… , for example, light guiding and
negative refraction [27–29], … and straight samples with different waveguide separations d. …

Sensitivity analysis of a dielectric loaded 1× 2 directional coupler switch based on foundry process optical waveguides

MT Hill, D Silva, M Martyniuk, L Faraone - Optical Engineering, 2023 - spiedigitallibrary.org
… a low loss mechanically activated 1 × 2 optical switch. The … load of high refractive index n
L is placed over the waveguide … switch with SiN waveguides for a number of different loads, …

All-optical switching in epsilon-near-zero asymmetric directional coupler

Y Sha, ZT Xie, J Wu, HY Fu, Q Li - Scientific Reports, 2022 - nature.com
… of traditional all-optical waveguide logic gates. To date, all-… , a cloud of dipoles with different
phases and orientations are … layer features a large refractive index change, low loss, and …

Broadband and low-loss silicon photonic directional coupler for signal power tapping on the 3 μm soi waveguide platform

D Lv, L Wu, C Liu, A Li, R Wang, A Wu - Photonics, 2023 - mdpi.com
… The 3 μm silicon-on-insulator (SOI) optical waveguide … have a higher sensitivity of the effective
refractive index of the … splitting ratios from 1470 nm to 1630 nm for different gap sizes are …

Effect of dispersion-enhanced sensitivity in a two-mode optical waveguide with an asymmetric diffraction grating

A Tsarev - Sensors, 2021 - mdpi.com
… wave propagates along an optical waveguide (in our case, a … changing refractive index
and/or a waveguide boundary [29,… modes of the silicon waveguide are strongly different, and the …

All-optical mode switching with a graphene-buried polymer waveguide directional coupler

L Jiang, KS Chiang - Optics Letters, 2022 - opg.optica.org
… into heat and the very high thermal conductivity of graphene (… We next calculate the
refractive-index distribution from the … the coupling efficiencies of the device at different

Fiber-interface directional coupler inscribed by femtosecond laser for refractive index measurements

J Han, Y Zhang, C Liao, Y Jiang, Y Wang, C Lin… - Optics …, 2020 - opg.optica.org
highly beneficial for ensuring strong evanescent fields of the … forming precise optical
waveguides in glass with high flexibility … of the waveguides, the laser beam was focused at …

Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics

Y Wang, L Zhong, KY Lau, X Han, Y Yang… - Light: Science & …, 2024 - nature.com
… the refractive index profile of 3D waveguides with high spatial … of the optical field by means
of a highly customizable spatial-… a small loss variation of less than 0.2 dB at different depths …

Robust and broadband optical coupling by topological waveguide arrays

W Song, W Sun, C Chen, Q Song… - Laser & Photonics …, 2020 - Wiley Online Library
from an SSH model defined by a coupled optical waveguide … fluctuation strength with different
waveguide numbers at fixed … dimer waveguide array is a silicon waveguide with refractive

Compact asymmetric directional-coupler-based two-mode optical switch utilizing low loss Sb2Se3 phase-change material

A Atri, A Zarifkar - JOSA B, 2022 - opg.optica.org
different paths. In this work, a two-mode ${{1}} \times {{2}}$ … switches are either very large
with high losses or cannot route … of the waveguides from 480 to 860 nm, the effective refractive