Simultaneous transmission of the high-power phase sensitive OTDR, 100Gbps dual polarisation QPSK, accurate time/frequency, and their mutual interferences

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F63839172%3A_____%2F17%3A10132879" target="_blank" >RIV/63839172:_____/17:10132879 - isvavai.cz</a>

Result on the web

<a href="http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2624800" target="_blank" >http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2624800</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2267259" target="_blank" >10.1117/12.2267259</a>

Result language

angličtina

Original language name

Simultaneous transmission of the high-power phase sensitive OTDR, 100Gbps dual polarisation QPSK, accurate time/frequency, and their mutual interferences

Original language description

Currently, fibre networks are only way how to satisfy the ever growing needs for more bandwidth. Thanks to that the optical fibre can be found almost anywhere and new applications and services can be transmitted through the networks. Accurate time transfer, ultra-stable frequency transfer and fibre-optic sensors networks have been rather common. High speed data transmission, time and frequency transmission, and fibre-optic sensors must share the common fibre-optic infrastructure because it would not be economically feasible to build separate fibre networks for long distances. Each system has individual transmission requirements and is prone to another type of interference. Data transmission systems based on DP-QPSK or DP-xQAM use digital signal processing for signal recovering but it cannot fully compensate signal degradation due to polarization dependent loss and nonlinear effects which are the most dominant sources of signal degradation. Accurate time signals are slow and often OOK modulated, therefore may experience the degrading effect of chromatic dispersion. Ultra-stable frequency signals are not modulated at all information transmitted is the frequency of photons and such signals are continuous wave, but they suffer from phase noise also environmentally introduced, e.g. by vibrations. For phase sensitive OTDR sensor systems the high power pulses are necessary to use which may cause interference with other signals. For this reason, parallel and simultaneous transmission in DWDM spectral grids of standard data, time, frequency, and sensing signals is rather new and unexplored area of research.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

<a href="/en/project/EF16_013%2F0001797" target="_blank" >EF16_013/0001797: CESNET E-Infrastructure - Modernisation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Fiber Optic Sensors and Applications

ISBN

978-1-5106-0917-4

ISSN

0277-786X

e-ISSN

neuvedeno

Number of pages

8

Pages from-to

"102080D1"-"102080D7"

Publisher name

SPIE

Place of publication

Anaheim (USA)

Event location

Anaheim, California, United States

Event date

Apr 11, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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