scholarly journals Nonlinearity of optical fiber and the future of optical communication.

1987 ◽  
Vol 15 (5) ◽  
pp. 247-249
Author(s):  
Yoichi FUJII
Keyword(s):  
Optical Fiber ◽  
Optical Communication ◽  
The Future

scholarly journals Li-Fi – the future of wireless technology

2018 ◽  
Vol 7 (2.4) ◽  
pp. 17
Author(s):  
C Shyamala Kumari ◽  
S Florence ◽  
K Prema ◽  
L Leema Priyadharshini
Keyword(s):  
Radio Frequency ◽  
Optical Communication ◽  
Electromagnetic Interference ◽  
Large Scale ◽  
Data Traffic ◽  
Wireless Technology ◽  
Huge Amount ◽  
Communication Method ◽  
The Future ◽  
Future Demands

In this era of technology the number of gadgets such as mobilephones, smartwatches, digital glasses and health trackers are used extensively by people in a large scale. The data traffic is abundant as the available radio frequency is limited, so the demand for the wireless network is keep on increasing. In order to meet the future demands there was a development in the optical communication method known as Li-Fi(Light-Fidelity).This will offer more bandwidth than the RF spectrum. They make use of LEDs to transmit the data. The main advantages of the Li-Fi is that there is no need of licensing and has a huge amount of unregulated bandwidth and there is zero electromagnetic interference so that the health hazards are nullified.

Analysis of the Wireless Optical Communication Technology and its Application

2014 ◽  
Vol 687-691 ◽  
pp. 3579-3582
Author(s):  
Fang Jian Li
Keyword(s):  
Optical Fiber ◽  
Communication Technology ◽  
Optical Communication ◽  
Technology Development ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Access Technology ◽  
Wireless Optical Communication ◽  
3G Network ◽  
Problems And Solutions

The wireless optical communication is a kind of broadband access technology, it can be said that it properly combined with the optical fiber and wireless communication technology. More to say, it is a powerful supplement of modern optical fiber communication. In this paper, based on the advantages of wireless optical communication technology, this paper introduces the wireless optical communication technology in the application of 2G network, 3G network and extends the application in backbone network, and analyzes the common problems and solutions in the wireless optical communication. With the advance of technology, the wireless optical communications technology development prospects will be more and more broad, is worthy of popularization and application.

Optical OFDM/OQAM for the future optical communication

2014 ◽  
Author(s):  
Haibo Li ◽  
Qi Yang ◽  
Chao Li ◽  
Xuebing Zhang ◽  
Cai Li ◽  
...  
Keyword(s):  
Optical Communication ◽  
The Future ◽  
Optical Ofdm

scholarly journals Design analysis and performance evaluation of the WDM integration with CO-OFDM system for radio over fiber System

2019 ◽  
Vol 15 (2) ◽  
pp. 870
Author(s):  
Adnan Hussein Ali ◽  
Hayder Jasim Alhamdane ◽  
Begared Salih Hassen
Keyword(s):  
Optical Fiber ◽  
Wavelength Division Multiplexing ◽  
Optical Communication ◽  
Fiber Optic ◽  
Radio Over Fiber ◽  
Base Stations ◽  
Ofdm System ◽  
Fiber System ◽  
Fiber Optic Communication ◽  
Optic Communication

<span>The optical communication and wireless networks can be integrated to increase the capacity and mobility with decrease the costs in the access networks. Optical communication is considered a Fiber optic communication that can be used for wired and wireless communication. The problems of Fiber optic communication have a solution represented by Radio over fiber (RoF) which can control many base stations (BSs) that connect to a central station (CS) with an optical fiber. The Coherent optical OFDM (CO-OFDM) have concerned a great interest due to the high spectral efficiency and strength to the fiber dispersion, also it can be considered as a promising candidate when used in long haul optical fiber transmission systems. The integration of the wavelength division multiplexing system (WDM) with (CO-OFDM) system for increasing the system performance as well as achieving high data rates. The simulation of WDM-ROF and  (WDM-CO-OFDM) with an optisystem simulator to analyze the RF spectrum, spectrum signal visualizers, and constellation diagrams. The proposed of integration of WDM and RoF-OFDM system is to achieve 100 km fiber length using 4QAM sequence bit, and the received power with electrical and optical amplifications by using 10 Gbps data signal.</span>

scholarly journals Measurement of Bangudae Rock Joint Using Non-adhesive, Non-contact Inclinometer Slope Laser Measuring System

2021 ◽  
Vol 37 (6) ◽  
pp. 617-625
Author(s):  
Jae Hyun Kim ◽  
Sang Ok Lee ◽  
Kwang Yong Chung ◽  
Min Su Han
Keyword(s):  
Optical Fiber ◽  
Rock Joint ◽  
Measuring System ◽  
Measuring Instrument ◽  
Contact Type ◽  
Short Period ◽  
Cultural Properties ◽  
The Future ◽  
Yangsan Fault ◽  
Provincial Park

Daegokcheon Stream in Daegok-ri, Ulju-gun, is an area with a developed valley and bedrock from Gajisan Provincial Park to the confluence of the Taehwa River across the Yangsan Fault. To measure the rock of Bangudae petroglyphs, the mineralogical weathering, joints, and scours or cavities at the bottom were confirmed. The measurement was carried out for a short period of time on the joint of the bedrock on which the Bangudae petroglyphs were engraved. Compared to the measured value obtained using existing optical fiber (Ch4 150 µm), a displacement value of 300 µm was obtained using the non-attached, non-contact type of measuring instrument. In the future, it is inferred that this instrument could be used for various cultural properties if the HSV-value suitable for illuminance and various measurement experiences are stored.

scholarly journals Dispersion Compensation In Optical Communication - A Review.

2013 ◽  
Vol 4 (3) ◽  
pp. 742-754
Author(s):  
Er. Abhishek Sharma ◽  
Er. Sukhbir Singh ◽  
Er. Bhubneshwar Sharma
Keyword(s):  
Optical Fiber ◽  
Optical Communication ◽  
Dispersion Compensation ◽  
Signal Distortion ◽  
Fiber Dispersion ◽  
Compensation Management

Dispersion is defined as - the phenomenon in an optical fiber whereby light photons arrive at a distant point  in the different phase then they entered the fiber. Dispersion causes signal distortion that ultimately limits the bandwidth and usable length of the fiber cable. Therefore dispersion compensation (management) becomes an essential part to study in optical communication for better transmission. In this paper we have reviewed the various techniques (schemes) that are used for dispersion compensation.

scholarly journals Optical Fiber for High-Power Optical Communication

Crystals ◽  
2012 ◽  
Vol 2 (4) ◽  
pp. 1382-1392 ◽  
Author(s):  
Kenji Kurokawa
Keyword(s):  
Optical Fiber ◽  
Optical Communication ◽  
High Power
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