J 2023

Long Distance Military Fiber-Optic Polarization Sensor Improved by an Optical Amplifier

KYSELAK, Martin, Jiri VAVRA, Karel SLAVÍČEK, David GRENAR, Lucie HUDCOVA et. al.

Basic information

Original name

Long Distance Military Fiber-Optic Polarization Sensor Improved by an Optical Amplifier

Authors

KYSELAK, Martin, Jiri VAVRA, Karel SLAVÍČEK (203 Czech Republic, guarantor, belonging to the institution), David GRENAR and Lucie HUDCOVA

Edition

Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi), BASEL, Scripta Technica, 2023, 2079-9292

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10200 1.2 Computer and information sciences

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.900 in 2022

Organization unit

Institute of Computer Science

UT WoS

000971072300001

Keywords in English

polarization sensor; birefringence; temperature sensor; military area; EDFA amplifier; wavelength multiplex

Tags

Tags

International impact, Reviewed
Změněno: 27/8/2024 10:23, Mgr. Alena Mokrá

Abstract

V originále

The ever-increasing demands for the use of fiber-optic sensors powered by long optical fibers is forcing developers to solve problems associated with powering these remote sensors. Due to their non-electric character, these sensors are suitable for many uses, including military applications. The Army of the Czech Republic is very interested in this type of optical fiber sensor as it fulfils the significant prerequisites for use in military areas. However, the army's requirements are challenging because they require long supply cables in which there is significant attenuation of optical power. At the same time, there is a need for high sensitivity. The subject of our research team's work was to use amplifiers to power these sensors. The army already uses this type of sensor for short distances as it cannot ignite a gas mixture with an explosive concentration and thus meet the strict requirements of the explosion-poof standard. The novelty of our research lies in the discovered measurement technique that allows the sensors to be powered remotely and in the saving of optical fibers by utilizing duplex communication with a circulator. Furthermore, the research presents an innovative approach to the optimization of the entire sensor by using a bidirectional, sensory, polarization-maintaining optical fiber. The proposed sensor was first verified in laboratory conditions at the Optoelectronics Laboratory of the University of Defense in Brno, and further tests were carried out in the military training areas of Boletice and Brezina in the Czech Republic, which is a member of North Atlantic Treaty Organization.

Links

VI20192022140, research and development project
Name: Detekce narušení obranného perimetru pomocí okamžité změny polarizace optického signálu
Investor: Ministry of the Interior of the CR, Detection of Defence Perimeter Disturbance by Instaneous Changing of Optical Signal Polarization