A compact electrically-pumped hybrid silicon microring laser

Author(s):  
Di Liang ◽  
Tadashi Okumura ◽  
Hsu-Hao Chang ◽  
Daryl Spencer ◽  
Ying-Hao Kuo ◽  
...  
2009 ◽  
Vol 17 (22) ◽  
pp. 20355 ◽  
Author(s):  
Di Liang ◽  
Marco Fiorentino ◽  
Tadashi Okumura ◽  
Hsu-Hao Chang ◽  
Daryl T. Spencer ◽  
...  

2011 ◽  
Vol 17 (6) ◽  
pp. 1528-1533 ◽  
Author(s):  
Di Liang ◽  
M. Fiorentino ◽  
S. Srinivasan ◽  
J. E. Bowers ◽  
R. G. Beausoleil

2009 ◽  
Author(s):  
Di Liang ◽  
Tadashi Okumura ◽  
Hsu-Hao Chang ◽  
Daryl Spencer ◽  
Ying-Hao Kuo ◽  
...  

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2605
Author(s):  
Ashley Novais ◽  
Carlos Calaza ◽  
José Fernandes ◽  
Helder Fonseca ◽  
Patricia Monteiro ◽  
...  

Multisite neural probes are a fundamental tool to study brain function. Hybrid silicon/polymer neural probes combine rigid silicon and flexible polymer parts into one single device and allow, for example, the precise integration of complex probe geometries, such as multishank designs, with flexible biocompatible cabling. Despite these advantages and benefiting from highly reproducible fabrication methods on both silicon and polymer substrates, they have not been widely available. This paper presents the development, fabrication, characterization, and in vivo electrophysiological assessment of a hybrid multisite multishank silicon probe with a monolithically integrated polyimide flexible interconnect cable. The fabrication process was optimized at wafer level, and several neural probes with 64 gold electrode sites equally distributed along 8 shanks with an integrated 8 µm thick highly flexible polyimide interconnect cable were produced. The monolithic integration of the polyimide cable in the same fabrication process removed the necessity of the postfabrication bonding of the cable to the probe. This is the highest electrode site density and thinnest flexible cable ever reported for a hybrid silicon/polymer probe. Additionally, to avoid the time-consuming bonding of the probe to definitive packaging, the flexible cable was designed to terminate in a connector pad that can mate with commercial zero-insertion force (ZIF) connectors for electronics interfacing. This allows great experimental flexibility because interchangeable packaging can be used according to experimental demands. High-density distributed in vivo electrophysiological recordings were obtained from the hybrid neural probes with low intrinsic noise and high signal-to-noise ratio (SNR).


Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1646
Author(s):  
Jingya Xie ◽  
Wangcheng Ye ◽  
Linjie Zhou ◽  
Xuguang Guo ◽  
Xiaofei Zang ◽  
...  

In the last couple of decades, terahertz (THz) technologies, which lie in the frequency gap between the infrared and microwaves, have been greatly enhanced and investigated due to possible opportunities in a plethora of THz applications, such as imaging, security, and wireless communications. Photonics has led the way to the generation, modulation, and detection of THz waves such as the photomixing technique. In tandem with these investigations, researchers have been exploring ways to use silicon photonics technologies for THz applications to leverage the cost-effective large-scale fabrication and integration opportunities that it would enable. Although silicon photonics has enabled the implementation of a large number of optical components for practical use, for THz integrated systems, we still face several challenges associated with high-quality hybrid silicon lasers, conversion efficiency, device integration, and fabrication. This paper provides an overview of recent progress in THz technologies based on silicon photonics or hybrid silicon photonics, including THz generation, detection, phase modulation, intensity modulation, and passive components. As silicon-based electronic and photonic circuits are further approaching THz frequencies, one single chip with electronics, photonics, and THz functions seems inevitable, resulting in the ultimate dream of a THz electronic–photonic integrated circuit.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jae-Hyuck Choi ◽  
William E. Hayenga ◽  
Yuzhou G. N. Liu ◽  
Midya Parto ◽  
Babak Bahari ◽  
...  

AbstractTopological insulator lasers (TILs) are a recently introduced family of lasing arrays in which phase locking is achieved through synthetic gauge fields. These single frequency light source arrays operate in the spatially extended edge modes of topologically non-trivial optical lattices. Because of the inherent robustness of topological modes against perturbations and defects, such topological insulator lasers tend to demonstrate higher slope efficiencies as compared to their topologically trivial counterparts. So far, magnetic and non-magnetic optically pumped topological laser arrays as well as electrically pumped TILs that are operating at cryogenic temperatures have been demonstrated. Here we present the first room temperature and electrically pumped topological insulator laser. This laser array, using a structure that mimics the quantum spin Hall effect for photons, generates light at telecom wavelengths and exhibits single frequency emission. Our work is expected to lead to further developments in laser science and technology, while opening up new possibilities in topological photonics.


2004 ◽  
Vol 85 (17) ◽  
pp. 3660-3662 ◽  
Author(s):  
P.-C. Lv ◽  
R. T. Troeger ◽  
S. Kim ◽  
S. K. Ray ◽  
K. W. Goossen ◽  
...  

2009 ◽  
Vol 26 (6) ◽  
pp. 064211 ◽  
Author(s):  
Chen Ting ◽  
Hong Tao ◽  
Pan Jiao-Qing ◽  
Chen Wei-Xi ◽  
Cheng Yuan-Bing ◽  
...  

2010 ◽  
Vol 58 (11) ◽  
pp. 3213-3219 ◽  
Author(s):  
Hui-Wen Chen ◽  
Alexander W. Fang ◽  
Jonathan D. Peters ◽  
Zhi Wang ◽  
Jock Bovington ◽  
...  

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