scholarly journals Optimization of Low-Loss Al2O3 Waveguide Fabrication for Application in Active Integrated Optical Devices

2019 ◽  
Vol 3 (11) ◽  
pp. 17-26 ◽  
Author(s):  
K. Worhoff ◽  
Feridun Ay ◽  
Markus Pollnau
1990 ◽  
Author(s):  
YASUJI OHMORI ◽  
TOSHIMI KOMINATO ◽  
HISAAKI OKAZAKI ◽  
MITSUHO YASU

2019 ◽  
pp. 90-95
Author(s):  
V. A. Minaev ◽  
I. D. Korolev ◽  
O. A. Kulish ◽  
A. V. Mazin

The existing methods of information delivery to the strategic and tactical management of many government agencies are expensive, not always reliable and efficient. Therefore, quantum cryptographic systems (QCS) have been actively developed in recent years. However, there are problems with the use of the QCS associated with the reliability of information transfer. First, the existing fiber-optic communication channels (FOCC) are not designed to transmit single-photon signals, which leads to the complexity of their cryptographic protection. The second is insufficiently methodically developed calculation of energy losses and errors in the evaluation of the characteristics of information transfer in FOCC QCS. In article the analysis of the energy loss factors in the classical fiber-optic channel is carried out and the additive loss formula is discussed in detail. Then we consider the fiber-optic channel of quantum information transmission with the use of integrated optical devices. The additive formula of optical losses in such a channel is discussed. The features of losses in integrated optical devices are shown. The features of quantum cryptographic system of information transmission are considered. As a result, the model of FOCC QCS taking into account energy losses is presented, which allows competently in theoretical terms and visualize the passage of information through modern quantum cryptographically secure telecommunications while providing control in government structures.


1998 ◽  
Author(s):  
Robert A. Norwood ◽  
Robert Blomquist ◽  
Louay A. Eldada ◽  
Cathy Glass ◽  
Constantina Poga ◽  
...  

2002 ◽  
Vol 35 (12) ◽  
pp. 1404-1407 ◽  
Author(s):  
Wei Shi ◽  
Changshui Fang ◽  
Qiwei Pan ◽  
Zhihui Qin ◽  
Qintian GU ◽  
...  

2009 ◽  
Vol 48 (6) ◽  
pp. 065502 ◽  
Author(s):  
Nobuhiko Ozaki ◽  
Shunsuke Ohkouchi ◽  
Yoshiaki Takata ◽  
Naoki Ikeda ◽  
Yoshinori Watanabe ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document