Low-loss multimode-interference-based crossings for silicon wire waveguides

H Chen, AW Poon - IEEE photonics technology letters, 2006 - ieeexplore.ieee.org
We report multimode-interference (MMI)-based crossings in high-index-contrast silicon wire
waveguides. Our experiments show an MMI crossing of~ 0.4-dB insertion loss, which …

High-performance multimode interference coupler in silicon waveguides with subwavelength structures

A Ortega-Monux, L Zavargo-Peche… - IEEE Photonics …, 2011 - ieeexplore.ieee.org
The performance of multimode interference (MMI) couplers in silicon waveguides is limited
by the high lateral refractive index contrast. Here we propose the use of subwavelength …

Ultralow-loss silicon waveguide crossing using Bloch modes in index-engineered cascaded multimode-interference couplers

Y Zhang, A Hosseini, X Xu, D Kwong, RT Chen - Optics letters, 2013 - opg.optica.org
We investigate the loss mechanism in three-moded multimode-interference couplers that are
the building blocks of a compact and low-loss waveguide crossing structure. Broadband …

A CMOS-compatible, low-loss, and low-crosstalk silicon waveguide crossing

Y Zhang, S Yang, AEJ Lim, GQ Lo… - IEEE Photonics …, 2013 - ieeexplore.ieee.org
We demonstrated a waveguide crossing for submicron silicon waveguides with average
insertion loss of 0.18±0.03 dB and crosstalk of-41±2 dB, uniform across an 8-inch wafer. The …

Low-loss, low-crosstalk waveguide crossing for scalable integrated silicon photonics applications

M Johnson, MG Thompson, D Sahin - Optics express, 2020 - opg.optica.org
A waveguide crossing based on multi-mode interference is designed and experimentally
characterized on the silicon platform. The insertion loss of the device is measured as 43±4 …

Subwavelength grating crossings for silicon wire waveguides

PJ Bock, P Cheben, JH Schmid, J Lapointe… - Optics express, 2010 - opg.optica.org
We report on the design, simulation and experimental demonstration of a new type of
waveguide crossing based on subwavelength gratings in silicon waveguides. We used 3D …

Four-wave mixing in silicon wire waveguides

H Fukuda, K Yamada, T Shoji, M Takahashi… - Optics express, 2005 - opg.optica.org
We report the observation of four-wave mixing phenomenon in a simple silicon wire
waveguide at the optical powers normally employed in communications systems. The …

A compact and low-loss MMI coupler fabricated with CMOS technology

Z Sheng, Z Wang, C Qiu, L Li, A Pang… - IEEE Photonics …, 2012 - ieeexplore.ieee.org
We present the design, fabrication, and measurement of a compact and low-loss multimode
interference (MMI) coupler based on the silicon nanowire waveguide. The device is carefully …

Optimization of ultracompact polarization-insensitive multimode interference couplers based on Si nanowire waveguides

D Dai, S He - IEEE photonics technology letters, 2006 - ieeexplore.ieee.org
An ultracompact multimode interference (MMI) coupler based on Si nanowire waveguides is
optimized to achieve polarization-insensitive performances. According to numerical …

Efficient silicon wire waveguide crossing with negligible loss and crosstalk

AV Tsarev - Optics Express, 2011 - opg.optica.org
Multiple optical elements utilize crossing of channel optical waveguides. This paper
introduces efficient silicon wire waveguide crossing by means of vertical coupling of tapered …