Electro-optic hybrid rotary joint technology for Air Force tracker system power and signal transmission applications

2000 ◽  
Author(s):  
Guoda Xu ◽  
John M. Bartha ◽  
Sean Z. Zhang ◽  
Wei Qiu ◽  
Freddie S. Lin ◽  
...  
Keyword(s):  
Air Force ◽  
Signal Transmission ◽  
Rotary Joint ◽  
Electro Optic ◽  
System Power

Application of FORJ Technology in Photoelectric Tracking Equipment

2013 ◽  
Vol 760-762 ◽  
pp. 294-297
Author(s):  
Zi Jing Zhong ◽  
Chun Yu Wang ◽  
Xing Long Qi ◽  
Lin Ren
Keyword(s):  
Single Channel ◽  
Signal Transmission ◽  
Vertical Axis ◽  
Optical Signal ◽  
Rotary Joint ◽  
Design Structure ◽  
Optical Module ◽  
Transmission Quality ◽  
Normal Method ◽  
Rotary Speed

In the design of the photoelectric tracking equipment, to realize the connection between the fiber that rotates with the tracker and the fiber that fixed in the non-rotating vertical axis, The fiber optic rotary joint (FORJ) technology has been applied, which makes the optical signal be transmitted correctly under the fiber rotating status. The normal method that applying the double-channel FORJ has been introduced, based on which, a method applying single-channel FORJ and double-direction optical module has been carried out to improve the transmission quality and simplify the design structure. The insertion loss of the applied FORJ is less than 2dB and the maximum rotary speed can be up to 1000rpm. Meanwhile the design of the optic channel realizes the double-direction signal transmission with rotating movement in single route fiber. The real work shows that the signal of the equipment can be transmitted correctly.

scholarly journals ELECTRO OPTIC MODULATOR DEVICES FOR HIGH SPEED DATA IN OPTICAL COMMUNICATION

2015 ◽  
Vol 3 (10) ◽  
pp. 38-42
Author(s):  
Raghunathababu ◽  
Siddaiah P
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Fiber Optic ◽  
Signal Transmission ◽  
Vital Role ◽  
Long Distance ◽  
High Data ◽  
Rate Transmission ◽  
Electro Optic ◽  
Optic Communication

Electro Optic devices in fiber optic Communication systems are playing a Vital Role in telecommunication infrastructure for worldwide broadband networks. Wide bandwidth of signal transmission with low delay, wide transmission bandwidth with less latency, the transmission medium for long distance with high data rate transmission. This paper gives an overview of Electro optic devices for fiber optic systems and their key technologies, their technological trend towards the next generation.

Epitaxial ferroelectric thin films

1994 ◽  
Vol 52 ◽  
pp. 572-573
Author(s):  
S. G. Ghonge ◽  
E. Goo ◽  
R. Ramesh ◽  
R. Haakenaasen ◽  
D. K. Fork
Keyword(s):  
Single Crystal ◽  
Work Function ◽  
Nonvolatile Memory ◽  
Ferroelectric Properties ◽  
Electrical Contact ◽  
Memory Devices ◽  
Ferroelectric Films ◽  
Si Substrates ◽  
Electro Optic ◽  
Wide Range

Microstructure of epitaxial ferroelectric/conductive oxide heterostructures on LaAIO3(LAO) and Si substrates have been studied by conventional and high resolution transmission electron microscopy. The epitaxial films have a wide range of potential applications in areas such as non-volatile memory devices, electro-optic devices and pyroelectric detectors. For applications such as electro-optic devices the films must be single crystal and for applications such as nonvolatile memory devices and pyroelectric devices single crystal films will enhance the performance of the devices. The ferroelectric films studied are Pb(Zr0.2Ti0.8)O3(PLZT), PbTiO3(PT), BiTiO3(BT) and Pb0.9La0.1(Zr0.2Ti0.8)0.975O3(PLZT).Electrical contact to ferroelectric films is commonly made with metals such as Pt. Metals generally have a large difference in work function compared to the work function of the ferroelectric oxides. This results in a Schottky barrier at the interface and the interfacial space charge is believed to responsible for domain pinning and degradation in the ferroelectric properties resulting in phenomenon such as fatigue.

Hearing Conservation in the U.S. Air Force

2004 ◽  
Vol 10 (1) ◽  
pp. 25-27
Author(s):  
Jonathan Thomas ◽  
Gabriel Almario
Keyword(s):  
Air Force ◽  
Hearing Conservation ◽  
The U.S
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