Zobrazeno 1 - 10
of 328
pro vyhledávání: '"Schmid, Jens H."'
Autor:
Zhang, Jianhao, Melati, Daniele, Grinberg, Yuri, Vachon, Martin, Wang, Shurui, Al-Digeil, Muhammad, Janz, Siegfried, Schmid, Jens H., Cheben, Pavel, Xu, Dan-Xia
Perfectly vertical grating couplers leveraging metamaterials can achieve both high coupling efficiency and minimal back reflection. The fabricability of these designs, with segmentations in both the longitudinal and transverse dimensions, hinges on t
Externí odkaz:
http://arxiv.org/abs/2311.12057
Autor:
Janz, Siegfried, Xu, Dan-Xia, Grinberg, Yuri, Wang, Shurui, Vachon, Martin, Cheben, Pavel, Schmid, Jens H., Melati, Daniele
Silicon photonic wavefront phase-tilt sensors for wavefront monitoring using surface coupling grating arrays are demonstrated. The first design employs the intrinsic angle dependence of the grating coupling efficiency to determine local wavefront til
Externí odkaz:
http://arxiv.org/abs/2309.11424
Autor:
Naraine, Cameron M., Westwood-Bachman, Jocelyn N., Horvath, Cameron, Aktary, Mirwais, Knights, Andrew P., Schmid, Jens H., Cheben, Pavel, Bradley, Jonathan D. B.
We propose and demonstrate subwavelength grating (SWG) metamaterial waveguides and ring resonators on a silicon nitride platform for the first time. The SWG waveguide is engineered such that a large overlap of 53% of the Bloch mode with the top cladd
Externí odkaz:
http://arxiv.org/abs/2209.09282
Highly efficient ultra-broad beam silicon nanophotonic antenna based on near-field phase engineering
Autor:
Khajavi, Shahrzad, Melati, Daniele, Cheben, Pavel, Schmid, Jens H., Ramos, Carlos A. Alonso, Ye, Winnie N.
Optical antennas are a fundamental element in optical phased arrays (OPA) and free-space optical interconnects. An outstanding challenge in optical antenna design lies in achieving high radiation efficiency, ultra-compact footprint and broad radiatio
Externí odkaz:
http://arxiv.org/abs/2209.00622
Autor:
Al-Digeil, Muhammad, Grinberg, Yuri, Melati3, Daniele, Dezfouli, Mohsen Kamandar, Schmid, Jens H., Cheben, Pavel, Janz, Siegfried, Xu, Dan-Xia
Autoencoders (AE) provide a useful method for nonlinear dimensionality reduction but are ill-suited for low data regimes. Conversely, Principal Component Analysis (PCA) is data-efficient but is limited to linear dimensionality reduction, posing a pro
Externí odkaz:
http://arxiv.org/abs/2205.11673
Autor:
Melati, Daniele, Xu, Dan-Xia, Cheriton, Ross, Wang, Shurui, Vachon, Martin, Schmid, Jens H., Cheben, Pavel, Janz, Siegfried
We present a comparative experimental study of three silicon photonic echelle grating demultiplexers that are integrated with a Mach-Zehnder interferometer (MZI) launch structure. By appropriate choice of the MZI configuration, the temperature induce
Externí odkaz:
http://arxiv.org/abs/2201.02700
Autor:
Cheriton, Ross, Densmore, Adam, Sivanandam, Suresh, De Mooij, Ernst, Cheben, Pavel, Xu, Dan-Xia, Schmid, Jens H., Janz, Siegfried
We present a novel remote gas detection and identification technique based on correlation spectroscopy with a piezoelectric tunable fibre-optic Fabry-P\'erot filter. We show that the spectral correlation amplitude between the filter transmission wind
Externí odkaz:
http://arxiv.org/abs/2107.04494
Autor:
Melati, Daniele, Dezfouli, Mohsen Kamandar, Grinberg, Yuri, Schmid, Jens H., Cheriton, Ross, Janz, Siegfried, Cheben, Pavel, Xu, Dan-Xia
Compact and efficient optical antennas are fundamental components for many applications, including high-density fiber-chip coupling and optical phased arrays. Here we present the design of grating-based micro-antennas with perfectly vertical emission
Externí odkaz:
http://arxiv.org/abs/2008.02552
Autor:
Cheriton, Ross, Sivanandam, Suresh, Densmore, Adam, de Mooij, Ernst J. W., Melati, Daniele, Dezfouli, Mohsen Kamandar, Cheben, Pavel, Xu, Danxia, Schmid, Jens H., Lapointe, Jean, Ma, Rubin, Wang, Shurui, Simard, Luc, Janz, Siegfried
Absorption spectroscopy is widely used in sensing and astronomy to understand molecular compositions on microscopic to cosmological scales. However, typical dispersive spectroscopic techniques require multichannel detection, fundamentally limiting th
Externí odkaz:
http://arxiv.org/abs/2005.09750
Autor:
Schmid, Jens H., Rahim, Mohamed, Pakulski, Grzegorz, Vachon, Martin, Janz, Siegfried, Cheben, Pavel, Xu, Dan-Xia, Poole, Philip J., Barrios, Pedro, Jiang, Weihong, Lapointe, Jean, Melati, Daniele
An InAs-on-InP quantum dash buried heterostructure laser and silicon chip optimized for mutual integration by direct facet-to-facet coupling have achieved -1.2 dB coupling efficiency, with coupled laser RIN of -150 dB/Hz and 152 kHz linewidth.
Externí odkaz:
http://arxiv.org/abs/2005.00335