scholarly journals Silica-waveguide thermooptic phase shifter with low power consumption and low lateral heat diffusion

1993 ◽  
Vol 5 (12) ◽  
pp. 1415-1418 ◽  
Author(s):  
B.A. Moller ◽  
L. Jensen ◽  
C. Laurent-Lund ◽  
C. Thirstrup
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Phase Shifter ◽  
Heat Diffusion ◽  
Low Power Consumption ◽  
Lateral Heat

Orbital-selective electronic excitation in phase-change memory materials: a brief review

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Nian-Ke Chen ◽  
Bai-Qian Wang ◽  
Xue-Peng Wang ◽  
Xian-Bin Li
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Phase Change ◽  
Electronic Excitation ◽  
Phase Change Memory ◽  
New Physics ◽  
Heat Diffusion ◽  
Low Power Consumption ◽  
Structural Transitions ◽  
Change Memory

Abstract Ultrafast laser-induced phase/structural transitions show a great potential in optical memory and optical computing technologies, which are believed to have advantages of ultrafast speed, low power consumption, less heat diffusion and remote control as compared with electronic devices. Here, we review and discuss the principles of orbital-selective electronic excitation and its roles in phase/structural transitions of phase-change memory (PCM) materials, including Sc0.2Sb1.8Te3 and GeTe phases. It is demonstrated, that the mechanism can influence the dynamics or results of structural transitions, such as an ultrafast amorphization of Sc0.2Sb1.8Te3 and a non-volatile order-to-order structural transition of GeTe. Without thermal melting, these structural transitions have the advantages of ultrafast speed and low power consumption. It suggests that the orbital-selective electronic excitation can play a significant role in discovering new physics of phase change and shows a potential for new applications.

Thermo-optic phase shifter with sub-microsecond switching time and low power consumption

2020 ◽  
Vol 59 (SO) ◽  
pp. SOOA03
Author(s):  
Masaki Okamoto ◽  
Manuel Mendez-Astudillo ◽  
Tomohiro Kita
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Phase Shifter ◽  
Switching Time ◽  
Low Power Consumption

Optimal design of a high homogeneous and small-size shim coil for atomic spin gyroscope based on 0-1 linear programming

2020 ◽  
Vol 64 (1-4) ◽  
pp. 165-172
Author(s):  
Dongge Deng ◽  
Mingzhi Zhu ◽  
Qiang Shu ◽  
Baoxu Wang ◽  
Fei Yang
Keyword(s):  
Linear Programming ◽  
Power Consumption ◽  
Low Power ◽  
Optimization Design ◽  
Structural Parameters ◽  
Axial Position ◽  
Low Power Consumption ◽  
Optimal Method ◽  
Atomic Spin ◽  
Shim Coil

It is necessary to develop a high homogeneous, low power consumption, high frequency and small-size shim coil for high precision and low-cost atomic spin gyroscope (ASG). To provide the shim coil, a multi-objective optimization design method is proposed. All structural parameters including the wire diameter are optimized. In addition to the homogeneity, the size of optimized coil, especially the axial position and winding number, is restricted to develop the small-size shim coil with low power consumption. The 0-1 linear programming is adopted in the optimal model to conveniently describe winding distributions. The branch and bound algorithm is used to solve this model. Theoretical optimization results show that the homogeneity of the optimized shim coil is several orders of magnitudes better than the same-size solenoid. A simulation experiment is also conducted. Experimental results show that optimization results are verified, and power consumption of the optimized coil is about half of the solenoid when providing the same uniform magnetic field. This indicates that the proposed optimal method is feasible to develop shim coil for ASG.

An Ultra-low Power Consumption MAC Protocol Complied with IEEE 802.15.4/4e for Wireless Smart Utility Networks

2016 ◽  
Vol 136 (11) ◽  
pp. 1555-1566 ◽  
Author(s):  
Jun Fujiwara ◽  
Hiroshi Harada ◽  
Takuya Kawata ◽  
Kentaro Sakamoto ◽  
Sota Tsuchiya ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Ieee 802.15.4 ◽  
Mac Protocol ◽  
Low Power Consumption ◽  
Ultra Low Power
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