Results 51 to 60 of about 2,648 (223)

Germanium‐Based Mid‐Infrared Integrated Photonics

Laser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini, Goran Z. Mashanovich, Milos Nedeljkovic, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella   +6 more
wiley   +1 more source

High-Resolution Arrayed-Waveguide-Gratings in Astronomy: Design and Fabrication Challenges

Photonics, 2017
A comprehensive design of a folded-architecture arrayed-waveguide-grating (AWG)-device, targeted at applications as integrated photonic spectrographs (IPS) in near-infrared astronomy, is presented.
Andreas Stoll, Ziyang Zhang, Roger Haynes, Martin Roth   +3 more
doaj   +1 more source

Spatial‐Wavelength Multiplexing Error‐Controlled Photonic Analog Computing System

Advanced Science, Volume 13, Issue 28, 18 May 2026.
A novel photonic integrated circuit prototype implementing the concept of general‐purpose analog computing and demonstrate its capability in radio frequency applications. The chip features a multichannel architecture and performs fully optical analog computation with frequency‐domain parallel processing. An FPGA‐based error‐correction algorithm aims to
Tao Zhu, Bowen Zhu, Shicheng Zhang, Keren Li, Xianchen Wu, Yazhi Pi, Jie Yan, Daigao Chen, Bingli Guo, Xi Xiao, Lei Wang, Xiaochuan Xu, Xuwei Xue, Shanguo Huang, Zizheng Cao, Shaohua Yu   +15 more
wiley   +1 more source

Integrated Optical Delay Line Based on a Loopback Arrayed Waveguide Grating for Radio-frequency Filtering

IEEE Photonics Journal, 2020
Integrated silicon photonics provides an attractive platform for on-chip radio-frequency (RF) signal processing. We demonstrate an integrated silicon optical delay line based on a loopback arrayed waveguide grating (AWG).
Xinyi Wang, Linjie Zhou, Liangjun Lu, Xingjun Wang, Jianping Chen   +4 more
doaj   +1 more source

General‐Purpose Hexagonal Programmable Photonic Integrated Circuit with a >30 GHz Free Spectral Range

Laser &Photonics Reviews, Volume 20, Issue 10, 22 May 2026.
A compact and low insertion loss programmable photonic circuit is demonstrated based on a 7‐cell hexagonal waveguide mesh with a large free spectral range (FSR) of 31 GHz for a 6‐gate ring resonator configuration. Vernier rings and a dual‐injected ring configuration are demonstrated on this circuit with a further improved FSR of 93 GHz.
Yu Zhang, Xiangfeng Chen, Lukas Van Iseghem, Iman Zand, Hasan Salmanian, Antonio Ribeiro, Wim Bogaerts   +6 more
wiley   +1 more source

Low-Loss Compact Silicon Nitride Arrayed Waveguide Gratings for Photonic Integrated Circuits

IEEE Photonics Journal, 2017
We report on low-loss, low-crosstalk, and compact arrayed waveguide gratings (AWGs) based on a 200-nm-thick-Si3 N4-core platform. High-resolution fabrication processes realized four types of Si3N4 AWG devices: 8 channel × 200 GHz, 16 ...
Kuanping Shang, Shibnath Pathak, Chuan Qin, S. J. Ben Yoo   +3 more
doaj   +1 more source

Germanium-on-silicon planar concave grating wavelength (de)multiplexers in the mid-infrared [PDF]

, 2013
Mid-infrared wavelength (de)multiplexers based on planar concave gratings (PCGs) fabricated on a germanium-on-silicon waveguide platform are presented. PCGs with two different types of gratings (flat facet and distributed bragg reflectors) are analyzed ...
Aditya Malik, Gunther Roelkens, Joris Van Campenhout, Marz R., Muhammad Muneeb, Roger Loo, Yosuke Shimura   +6 more
core   +2 more sources

Digitally Tunable Dispersion Controller Using Low‐Loss Silicon Nitride Multimode Waveguide Gratings

Nanophotonics, Volume 15, Issue 8, 24 April 2026.
A digitally tunable dispersion controller (DTDC) using low‐loss silicon nitride multimode waveguide gratings is demonstrated. Utilizing cascaded chirped multimode waveguide gratings and Mach–Zehnder switches, the device achieves a tuning range of 0–49.72 ps/nm with 1.60 ps/nm steps over a 26‐nm bandwidth.
Weihan Wang, Ruitao Ma, Shujun Liu, Mingyu Zhu, Zian Cao, Zexu Wang, Weike Zhao, Yiwei Xie, Zejie Yu, Daoxin Dai   +9 more
wiley   +1 more source

Low Loss 16-Channel Photodetector Array Receiving Module With Fine Tuning Ability

IEEE Photonics Journal, 2022
A 16-channel photodetector array receiving module with good performance as low loss, fine tuning and high reliability is manufactured in our laboratory.
Wenyu Wang, Zeping Zhao, Xueyan Han, Yuehui Wang, Junming An, Jianguo Liu   +5 more
doaj   +1 more source

Fundamental Building Blocks for Scalable Photonic Programmable Processors

Nanophotonics, Volume 15, Issue 8, 24 April 2026.
Silicon photonic programmable processors are advanced through the optimisation and experimental validation of key building blocks, including splitters, phase shifters and crossings. In this work, their scalability is experimentally demonstrated at the wafer scale, and their circuit‐level impact is showcased in a high‐speed 4 × 4 optical switch ...
Cristina Gómez‐Hidalgo, Juan Fernández‐Vicente, Natalia Balbastre‐Benavent, María Manglano‐Bermejo, Marios Papadovasilakis, Ahmed Elsharabasy, Rocío Baños‐López, Jesús Benítez‐González, Ana Gutiérrez‐Campo, Tsjerk Hoekstra, Daniel Pérez‐López, Luis Torrijos‐Morán   +11 more
wiley   +1 more source