High performance directly modulated lasers: device physics

2003 ◽  
Author(s):  
J. Kenton White ◽  
Gordon Knight ◽  
Suhit Das ◽  
Richard J. Finlay ◽  
Trevor Jones ◽  
...  
Keyword(s):  
High Performance ◽  
Device Physics ◽  
Directly Modulated Lasers

scholarly journals Graphene-Based Semiconductor Heterostructures for Photodetectors

Micromachines ◽  
2018 ◽  
Vol 9 (7) ◽  
pp. 350 ◽  
Author(s):  
Dong Shin ◽  
Suk-Ho Choi
Keyword(s):  
Optical Properties ◽  
High Performance ◽  
Optoelectronic Devices ◽  
Semiconductor Heterostructures ◽  
Device Physics ◽  
Electrical And Optical Properties ◽  
Design Performance ◽  
Future Challenges ◽  
Transparent Conductive Electrodes

Graphene transparent conductive electrodes are highly attractive for photodetector (PD) applications due to their excellent electrical and optical properties. The emergence of graphene/semiconductor hybrid heterostructures provides a platform useful for fabricating high-performance optoelectronic devices, thereby overcoming the inherent limitations of graphene. Here, we review the studies of PDs based on graphene/semiconductor hybrid heterostructures, including device physics/design, performance, and process technologies for the optimization of PDs. In the last section, existing technologies and future challenges for PD applications of graphene/semiconductor hybrid heterostructures are discussed.

scholarly journals Device physics towards high performance GaN-based power electronics

2016 ◽  
Vol 46 (10) ◽  
pp. 107307
Author(s):  
Ke WEI ◽  
Shu YANG ◽  
Jing CHEN ◽  
ZhiKai TANG ◽  
XinYu LIU ◽  
...  
Keyword(s):  
Power Electronics ◽  
High Performance ◽  
Device Physics

Understanding of carrier dynamics, heterojunction merits and device physics: towards designing efficient carrier transport layer-free perovskite solar cells

2020 ◽  
Vol 49 (2) ◽  
pp. 354-381 ◽  
Author(s):  
Jin-Feng Liao ◽  
Wu-Qiang Wu ◽  
Yong Jiang ◽  
Jun-Xing Zhong ◽  
Lianzhou Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Carrier Transport ◽  
Perovskite Solar Cells ◽  
Carrier Dynamics ◽  
Transport Layer ◽  
Device Physics ◽  
Recent Advances

This review summarizes recent advances in the carrier transport layer-free perovskite solar cells and elucidates the fundamental carrier dynamics, heterojunction merits and device physics towards mysterious high performance.

Simulation study of device physics and design of GeOI TFET with PNN structure and buried layer for high performance

2020 ◽  
Vol 29 (10) ◽  
pp. 107401
Author(s):  
Bin Wang ◽  
Sheng Hu ◽  
Yue Feng ◽  
Peng Li ◽  
Hui-Yong Hu ◽  
...  
Keyword(s):  
Simulation Study ◽  
High Performance ◽  
Device Physics ◽  
Buried Layer

Design of 1.3- $\mu \text{m}$ High-Performance Directly Modulated Lasers Based on High-Order Slotted Surface Gratings

2017 ◽  
Vol 53 (5) ◽  
pp. 1-9 ◽  
Author(s):  
Wei Sun ◽  
Gongyuan Zhao ◽  
Pengfei Zhang ◽  
Michael Wallace ◽  
Frank Bello ◽  
...  
Keyword(s):  
High Performance ◽  
High Order ◽  
Directly Modulated Lasers

scholarly journals 47.5 GHz Membrane-III-V-on-Si Directly Modulated Laser for Sub-pJ/bit 100-Gbps Transmission

Photonics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 31
Author(s):  
Nikolaos-Panteleimon (Pandelis) Diamantopoulos ◽  
Suguru Yamaoka ◽  
Takuro Fujii ◽  
Hidetaka Nishi ◽  
Koji Takeda ◽  
...  
Keyword(s):  
Energy Efficient ◽  
High Speed ◽  
High Performance ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Computing Systems ◽  
Directly Modulated Lasers ◽  
Near Future ◽  
Performance Computing ◽  
Modulation Speed

Near-future upgrades of intra data center networks and high-performance computing systems would require optical interconnects capable of operating at beyond 100 Gbps/lane. In order for this evolution to be achieved in a sustainable way, high-speed yet energy-efficient transceivers are in need. Towards this direction we have previously demonstrated directly-modulated lasers (DMLs) capable of operating at 50 Gbps/lane with sub-pJ/bit efficiencies based on our novel membrane-III-V-on-Si technology. However, there exists an inherent tradeoff between modulation speed and power consumption due to the carrier-photon dynamics in DMLs. In this work, we alleviate this tradeoff by introducing photon–photon resonance dynamics in our energy-efficient membrane DMLs-on-Si design and demonstrate a device with a maximum 3-dB bandwidth of 47.5 GHz. This denotes a bandwidth increase of more than 2x times compared to our previous membrane DMLs-on-Si. Moreover, the DML is capable of delivering 60-GBaud PAM-4 signals under Ethernet’s KP4-FEC threshold (net data rate of 113.42 Gbps) over 2-km of standard single-mode fiber transmission. DC energy-efficiencies of 0.17 pJ/bit at 25 °C and 0.34 pJ/bit at 50 °C have been achieved for the > 100-Gbps signals. Deploying such DMLs in an integrated multichannel transceiver should ensure a smooth evolution towards Terabit-class Ethernet links and on-board optics subsystems.

scholarly journals Novel features and GPU performance analysis for EM particle transport in the Celeritas code

2021 ◽  
Vol 251 ◽  
pp. 03030
Author(s):  
Seth R. Johnson ◽  
Stefano C. Tognini ◽  
Philippe Canal ◽  
Thomas Evans ◽  
Soon Yung Jun ◽  
...  
Keyword(s):  
High Performance ◽  
High Energy Physics ◽  
Rapid Development ◽  
High Energy ◽  
Code Design ◽  
Device Physics ◽  
Performance Simulation ◽  
Transport Code ◽  
Level Performance ◽  
Energy Physics

Celeritas is a new computational transport code designed for high-performance simulation of high-energy physics detectors. This work describes some of its current capabilities and the design choices that enable the rapid development of efficient on-device physics. The abstractions that underpin the code design facilitate low-level performance tweaks that require no changes to the higher-level physics code. We evaluate a set of independent changes that together yield an almost 40% speedup over the original GPU code for a net performance increase of 220× for a single GPU over a single CPU running 8.4M tracks on a small demonstration physics app.

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