scholarly journals Development of a fiber-optic microwave signal transmissionsystem for an X-band receiving module with dual frequencyconversion

2021 ◽  
Vol 2086 (1) ◽  
pp. 012061
Author(s):  
A V Moroz ◽  
V V Davydov ◽  
D V Gubareva ◽  
V Yu Rud’
Keyword(s):  
Frequency Conversion ◽  
Fiber Optic ◽  
Transmission System ◽  
Microwave Signal ◽  
Experimental Investigations ◽  
Double Frequency ◽  
X Band ◽  
Receiving Module

Abstract The article discusses the use of double frequency conversion in the receiving module of the radar. To solve the resulting interference in the feeder paths, it is proposed to use a fiber- optic transmission system. The results of experimental investigations are presented.

scholarly journals CREATION OF INFRASTRUCTURE OF COMMON INFORMATION SPACE ULAN-BATOR RAILWAY

2020 ◽  
Vol 2018 (1) ◽  
pp. 82-83
Author(s):  
Dorzhderem Munhbuyant ◽  
Aleksey Daneev ◽  
Roman Daneev
Keyword(s):  
Fiber Optic ◽  
Transmission System ◽  
Information Space ◽  
Information Network ◽  
Fiber Optic Cable ◽  
Strategy Of Development ◽  
Common Information ◽  
Common Information Space ◽  
The Creation ◽  
Development Tasks

In first in Mongolia JSC UBRW implemented the strategy of development of railway transportation for the creation of the infrastructure with implementation of modern telecommunication technology and with highspeed transmission system based on fiber optic cable. Exposures the development tasks in information network of JSC UBRW in raising the respective tasks.

Experimental Investigations on Anti-Aliasing Properties of Acoustic Low-Pass Filtering Fiber-Optic Hydrophones Based on Phase Generate Carrier Demodulation

2009 ◽  
Vol 36 (8) ◽  
pp. 2064-2069
Author(s):  
王泽锋 Wang Zefeng ◽  
胡永明 Hu Yongming ◽  
孟洲 Meng Zhou ◽  
罗洪 Luo Hong ◽  
倪明 Ni Ming
Keyword(s):  
Fiber Optic ◽  
Experimental Investigations ◽  
Low Pass

scholarly journals Microwave Photonic Frequency Conversion Based on a Wavelength Swept Laser

2020 ◽  
Vol 10 (11) ◽  
pp. 3813
Author(s):  
Youxue Kong ◽  
Yuan Cao ◽  
Lin Wang ◽  
Guangying Wang ◽  
Xinhuan Feng ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Microwave Signal ◽  
Optical Carrier ◽  
Microwave Photonic ◽  
System A ◽  
Conversion Frequency ◽  
Mach Zehnder Modulator ◽  
Conversion Performance ◽  
5 Ghz

Microwave photonic frequency conversion, with flexible tunability and a simple structure based on a wavelength swept laser (WSL), is proposed and experimentally demonstrated. In the proposed frequency conversion system, a broadband WSL was used to generate a frequency-chirped optical carrier, which was sent to a Mach Zehnder modulator (MZM). A microwave signal, with its frequency to be converted, was applied to the MZM. The modulated signal was then sent to a dispersive device, where the waveform was compressed or expanded depending on the dispersion of the dispersive device. After photodetection, a frequency up-converted or down-converted microwave signal was generated. The tuning of the conversion frequency was achieved by adjusting the chirp rate of the optical carrier from the WSL or the dispersion of the dispersive device. The proposed approach was experimentally demonstrated. A microwave signal, with its frequency at 5 GHz, was up-converted to 5.577 GHz and down-converted to 4.936 GHz. The quality of the frequency converted microwave signal was also evaluated. The conversion performance could be further improved by introducing a WSL with a high duty cycle.

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