Optical and Structural Characterization of Erbium-Doped Ion-Implanted Tellurite Glasses for Active Integrated Optical Devices

2008 ◽  
pp. 68-73
Author(s):  
Simone Berneschi ◽  
M. Brenci ◽  
Gualtiero Nunzi Conti ◽  
S. Pelli ◽  
G.C. Righini ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Optical Devices ◽  
Tellurite Glasses ◽  
Integrated Optical ◽  
Erbium Doped ◽  
Integrated Optical Devices ◽  
Ion Implanted

Optical and Structural Characterization of Erbium-Doped Ion-Implanted Tellurite Glasses for Active Integrated Optical Devices

2008 ◽  
Vol 55 ◽  
pp. 68-73 ◽  
Author(s):  
Simone Berneschi ◽  
M. Brenci ◽  
Gualtiero Nunzi Conti ◽  
Stefano Pelli ◽  
G.C. Righini ◽  
...  
Keyword(s):  
Structural Characterization ◽  
High Performance ◽  
Luminescence Spectroscopy ◽  
Tellurite Glasses ◽  
Dark Line ◽  
Integrated Optical ◽  
Erbium Doped ◽  
Channel Waveguides ◽  
Nitrogen Ions

Erbium-doped tellurite glasses show great potential for the fabrication of high-performance integrated optical amplifiers and lasers, thanks to their unique properties in terms of bandwidth and rare earth solubility. As a first step towards the development of smart multi-functional integrated optical circuits, the fabrication of multimode channel waveguides in a sodium-tungsten-tellurite glass, by using nitrogen ions implantation, has been recently demonstrated [1]. The effects of the ion implantation process, however, have not been fully clarified, and a deeper investigation would be necessary in order to optimize the process and to truly exploit the glass useful characteristics. We therefore report here the results of a broad optical, topographic, and structural characterization of tellurite samples irradiated with various doses of nitrogen ions, while keeping constant the beam energy at 1.5 MeV. Characterization techniques have included absorption and luminescence spectroscopy, modal (dark-line) spectroscopy, surface profilometry, scanning electron microscopy, cathodoluminescence spectroscopy and EDX analysis.

Optimization and characterization of the guest-host polyetherketone polymer films for application in integrated optical devices

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

MODELING OF FIBER-OPTIC COMMUNICATION CHANNEL FOR QUANTUM CRYPTOGRAPHIC SYSTEMS

2019 ◽  
pp. 90-95
Author(s):  
V. A. Minaev ◽  
I. D. Korolev ◽  
O. A. Kulish ◽  
A. V. Mazin
Keyword(s):  
Information Transmission ◽  
Information Transfer ◽  
Fiber Optic ◽  
Single Photon ◽  
Optical Devices ◽  
Energy Losses ◽  
Integrated Optical ◽  
Integrated Optical Devices ◽  
Fiber Optic Communication ◽  
Optic Communication

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.

Polymer integrated optical devices for telecommunications applications

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