We examined optical fibers suitable for avoiding such problems as the fiber fuse phenomenon and failures at bends with a high power input. We found that the threshold power for fiber fuse propagation in photonic crystal fiber (PCF) and hole-assisted fiber (HAF) can exceed 18 W, which is more than 10 times that in conventional single-mode fiber (SMF). We considered this high threshold power in P...

Communication traffic is increasing continuously along with the expansion of video streaming service and the popularization of smartphones and other mobile devices requiring high-speed, large-capacity transmission. Digital coherent optical communication technology using multilevel modulation formats has already been used for long haul systems and is now attracting attention as a means of long-d...

Optical communication with two-photon coherent states—Part II: photoemissive detection and structured receiver performance, " IEEE Trans. Optical communication with two-photon coherent states—Part III: quantum measurements realizable with photoemissive detec­ tors, " IEEE Trans. Quantum noise and excess noise in optical homodyne and het­ erodyne receivers, " IEEE J.

Abstract In this paper we present optical communication multibus system including: physical topology, logical topology, structure of central control unit (CCU). We describe the task of CCU: analyze the state of logical buses, topology reconfiguration, system structures clustering, unexpected events handling, statistic gathering, etc. In this paper we present synthesis of core system network bas...

The performance of direct and hetedyne detection optical intersatellite communication links are evaluated and compared. It is shown that the perfonnance of optical links is very sensitive to the pointing and tracking e m at the transmitter and receiver. In the presence of random pointing and tracking errors, optimal antenna gains exist that wiU minimize the required transmitter power. In additi...

In recent years Optical soliton technologies have attracted much interest in the academic and industrial worlds. Today the potential of soliton engineering is recognised world-wide with reasearch groups actively working on this topic in every part of the globe. In this report, we present a brief overview of the fundamental concepts of temporal solitons and its potential applications in the eld ...

The paper describes an optical telescope system and control software for robotic observation of space debris. has a main aperture 355 mm, adopts the design scheme primary focus with large field view, is equipped highly sensitive 4 K sCMOS camera to achieve view 2.6° × 2.6°. environmental monitoring reliable dome ensure safe operation telescope. consists two parts. One part deployed locally comp...