Results 81 to 90 of about 1,129 (234)

Fabrication of an electro-absorption transceiver with a monolithically integrated optical amplifier for fiber transmission of 40–60 GHz radio signals

, 2010
We report on the fabrication of a monolithically integrated semiconductor optical amplifier (SOA) and a reflective electro-absorption transceiver (EAT) for 40-60 GHz radio-over-fiber applications.
Steffan, A, Jesper Berggren, Qin Wang, Berggren, J, Thylen, L, Almqvist, Susanne, Kjebon, Olle,, Honecker, J, Hammar, M, Marek Chacinski, Karlsson, Stefan,, Karlsson, S, Susanne Almqvist, Almqvist, S, Thylen, Lars,, Mattias Hammar, Chacinski, Marek,, Schatz, R, Andy Zhenzhong Zhang, Steffan, Andreas, Stefan Karlsson, Wang, Q,, Pierre-Yves Fonjallaz, Zhang, A Z, Kjebon, O, Olle Kjebon, Zhang, Andy Zhenzhong,, Schatz, Richard,, Richard Schatz, Honecker, Joerg, Jörg Honecker, Hammar, Mattias,, Fonjallaz, Pierre-Yves, Fonjallaz, PY, Andreas Steffan, Chacinski, M, Berggren, Jesper,, Lars Thylén, Wang, Qin   +38 more
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Characterisation and optimisation of the semiconductor optical amplifier for ultra-high speed performance

This research is in the area of high speed telecommunication systems where all- optical technologies are being introduced to meet the ever increasing demand for bandwidth by replacing the costly electro-optical conversion modules.
Shalaby, A. A.
core  

High performance optical network system based on reflective semiconductor optical amplifier

, 2008
반사형 반도체 광증폭기(Reflective Semiconductor Optical Amplifier; RSOA)를 각 가입자의 광원으로 이용하는 광가입자망에서 상향신호의 전송품질을 현저히 개선한 광 가입자망 시스템에 관해 개시한다. 본 발명의 가장 큰 특징은, RSOA를 각 가입자의 광원으로 사용하는 광 가입자망 시스템에서 하향신호의 변조방식으로 맨체스터 포맷(Manchester format)을 사용함으로써, 각 가입자의 광원으로 RSOA를 사용할 때
전상배, 정승필, 정윤철, 김상엽   +3 more
core  

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Evaluation of the reflective semiconductor optical amplifier in passive optical access networks

, 2018
En este documento, realizamos la caracterización del amplificador óptico semiconductor reflectante. De este modo, determinamos su ancho de banda de modulación, operación de limpieza de canal, potencia de entrada óptica y ancho de banda. Además, evaluamos
Aguazaco Rodríguez, Cristian David, Vargas Sierra, Cristian David   +1 more
core  

OFDM-WiMAX Modulation of a Reflective Amplified Modulator in Radio-Over-Fiber Context

, 2011
International audienceThis letter presents experimental characterization of an integrated reflective electroabsorption modulator and semiconductor optical amplifier (REAM-SOA) device in the radio-over-fiber (RoF) context.
Aupetit-Berthelemot, Christelle, Carsenat, David, B. Ftaich-Frigui, Decroze, Cyril, C. Decroze, D. Carsenat, Ftaich-Frigui, Bouchra, Mouhamadou, Moctar, M. Mouhamadou, C. Kazmierski, Kazmierski, Christophe, C. Aupetit-Berthelemot   +11 more
core   +1 more source

Shaping Carbon Nitrides for Advanced Macrostructures

Advanced Materials Technologies, EarlyView.
This review examines how carbon nitride can be shaped through a range of printing and interfacial assembly methods. By bringing together additive manufacturing and liquid–liquid structuring concepts, carbon nitride is moving beyond its traditional powder‐based photocatalyst form toward digitally designed robust macroscale architectures with high design
Simona Baluchová, Baris Kumru
wiley   +1 more source

Multimodal Haptic Perception Through Synergistic Nanocomposite Sensor Arrays

Advanced Materials Technologies, EarlyView.
Multi‐modal fingertip haptics are advanced through a bioinspired &vertical‐via' electronic skin architecture. A confined PDMS/MWCNT/NiNP nanocomposite, sitting at the percolation threshold, enables tactile, thermal, and magnetic sensing. A unique via‐density gradient and dedicated &Un‐Touch' reference nodes provide robust spatial resolution and signal ...
Amos Bardea, Fernando Patolsky
wiley   +1 more source

Flexible Pressure Sensor With Co‐Optimized Sensitivity and Linearity Based on Gradient Toroidal Microstructures

Advanced Materials Technologies, EarlyView.
A flexible piezoresistive pressure sensor with gradient toroidal CNT/PDMS microstructures is reported. The hierarchical geometry enables sequential electrode contact, achieving a sensitivity of 256.20 kPa−1 and linear response (R2 = 0.99) over 0–1000 kPa.
Rongmei Wang, Ruolin Liu, Ming Lei, Yifan Liu, Fengming Hu, Bing Ji, Chao Peng, Jianyi Luo, Bingpu Zhou   +8 more
wiley   +1 more source