Predictive simulations of radio frequency heated plasmas of Tore Supra using the Multi-Mode model

2002 ◽  
Vol 9 (10) ◽  
pp. 4241-4251 ◽  
Author(s):  
Irina Voitsekhovitch ◽  
Glenn Bateman ◽  
Arnold H. Kritz ◽  
Alexei Pankin
Keyword(s):  
Radio Frequency ◽  
Multi Mode ◽  
Predictive Simulations

scholarly journals A Radio over Fiber System with Simultaneous Wireless Multi-Mode Operation Based on a Multi-Wavelength Optical Comb and Pulse-Shaped 4QAM-OFDM

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1064 ◽  
Author(s):  
Li ◽  
Lin ◽  
Huang ◽  
Li
Keyword(s):  
Radio Frequency ◽  
Pulse Shaping ◽  
Radio Over Fiber ◽  
Optical Carrier ◽  
Mode Operation ◽  
Single Sideband ◽  
Multi Wavelength ◽  
Optical Wavelengths ◽  
5 Ghz ◽  
Multi Mode

In this paper, we propose a radio over fiber transmission system with simultaneous wireless multi-mode operation based on multi-wavelength optical comb and pulse shaping. This study is an initial attempt to accomplish simultaneous wireless multi-mode operation on a single optical carrier. A multi-wavelength optical comb with 13 flat optical wavelengths and space of 10 GHz is achieved by utilizing radio frequency (RF)-optics modulation and parameter configuration. The central station contains four adjacent optical wavelengths separated from the multi-wavelength optical comb by a wavelength division multiplexer, that one is modulated by 4QAM-OFDM signals with an up-converted carrier frequency of 5 GHz. The signals modulated with a single-sideband can be obtained by employing pulse shaping. The single-sideband optical signals are combined with the other three optical wavelengths and then transmitted over a standard single-mode fiber with a length of 50 km. In this arrangement, we can obtain several wireless carriers with frequencies of 5 GHz, 25 GHz, 45 GHz, and 65 GHz by direct detection. These wireless carriers are used for wireless transmission between the RF remote units and the mobile terminals. Additionally, in the radio frequency (RF) remote unit, we have three pure optical sources that can be utilized for the uplink transmission. With single channel and direct optoelectronic modulation, the optical and wireless communication with 10 Gbps can be accomplished in the whole process of system network transmission.

scholarly journals Refractive-index-sensing optical comb based on photonic radio-frequency conversion with intracavity multi-mode interference fiber sensor

2018 ◽  
Vol 26 (15) ◽  
pp. 19694 ◽  
Author(s):  
Ryo Oe ◽  
Shuji Taue ◽  
Takeo Minamikawa ◽  
Kosuke Nagai ◽  
Kyuki Shibuya ◽  
...  
Keyword(s):  
Refractive Index ◽  
Radio Frequency ◽  
Frequency Conversion ◽  
Fiber Sensor ◽  
Refractive Index Sensing ◽  
Multi Mode ◽  
Mode Interference

scholarly journals Radio-Frequency Multi-Mode OAM Detection Based on UCA Samples Learning

2021 ◽  
Author(s):  
Jiabei Fan ◽  
Rui Chen ◽  
Wen-Xuan Long ◽  
Marco Moretti ◽  
Jiandong Li
Keyword(s):  
Radio Frequency ◽  
Multi Mode

Comparison of high-mode predictive simulations using Mixed Bohm/gyro-Bohm and Multi-Mode (MMM95) transport models

2001 ◽  
Vol 8 (3) ◽  
pp. 964-974 ◽  
Author(s):  
David Hannum ◽  
Glenn Bateman ◽  
Jon Kinsey ◽  
Arnold H. Kritz ◽  
Thawatchai Onjun ◽  
...  
Keyword(s):  
High Mode ◽  
Transport Models ◽  
Multi Mode ◽  
Predictive Simulations

Multi-mode light microscopy of microtubule assembly dynamics and chromosome movement in vivo and In vitro

1996 ◽  
Vol 54 ◽  
pp. 730-731
Author(s):  
E. D. Salmon ◽  
J. C. Waters ◽  
C. Waterman-Storer
Keyword(s):  
Imaging System ◽  
Ccd Camera ◽  
Transmitted Light ◽  
Microtubule Assembly ◽  
Live Cells ◽  
Optical Efficiency ◽  
Multiple Band ◽  
Multi Mode

We have developed a multi-mode digital imaging system which acquires images with a cooled CCD camera (Figure 1). A multiple band pass dichromatic mirror and robotically controlled filter wheels provide wavelength selection for epi-fluorescence. Shutters select illumination either by epi-fluorescence or by transmitted light for phase contrast or DIC. Many of our experiments involve investigations of spindle assembly dynamics and chromosome movements in live cells or unfixed reconstituted preparations in vitro in which photodamage and phototoxicity are major concerns. As a consequence, a major factor in the design was optical efficiency: achieving the highest image quality with the least number of illumination photons. This principle applies to both epi-fluorescence and transmitted light imaging modes. In living cells and extracts, microtubules are visualized using X-rhodamine labeled tubulin. Photoactivation of C2CF-fluorescein labeled tubulin is used to locally mark microtubules in studies of microtubule dynamics and translocation. Chromosomes are labeled with DAPI or Hoechst DNA intercalating dyes.

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