Laser warning receiver

{{Short description|Military warning system}} A '''laser warning receiver''' is a warning system used as a passive military defence. It detects, analyzes, and locates directions of laser emissions<ref name=fm3-36-2009>{{cite book |url=https://books.google.com/books?id=bF3phGjIQ0sC&q=Laser+warning+receiver&pg=SA6-PA14 |title=Electronic Warfare in Operations: U. S. Army Field Manual FM 3-36 |page=A-4 |date=25 February 2009 |publisher=DIANE |access-date=7 February 2015 |isbn=9781437914245}} ([https://web.archive.org/web/20090306044726/http://usacac.army.mil/cac2/Repository/FM336/FM336.pdf PDF version] 4.53 MB)</ref> from laser guidance systems and laser rangefinders. Then it alerts the crew and can start various countermeasures, like smoke screen, aerosol screen (e.g. Shtora), active laser self-defence weapon with laser dazzler (LSDW, used on the Chinese Type 99 main battle tank<ref name="lsdw">{{Cite web|url=http://www.globalsecurity.org/military/world/china/type-99.htm|title = Type 99 Main Battle Tank}}</ref>), laser jammer, etc.

Detectors used in LWR are usually based on a semiconductor photodetector array, which is typically cryogenically or thermal-electric cooled. Sometimes avalanche photodiodes (APD), photoconductivity, photoelectromagnetic, or photodiffusion devices are used even without cooling.<ref>{{Cite web |url=http://www.boselec.com/products/detirlwr.html |title=Boston Electronics - Detectors in Laser Warning Receivers |access-date=2012-01-31 |archive-url=https://web.archive.org/web/20111206074644/http://www.boselec.com/products/detirlwr.html |archive-date=2011-12-06 |url-status=dead }}</ref> Some devices detect only the main beam of foreign lasers while others detect even scattered rays.

== Produced by == ; {{flag|France}} :* Thales Optronics<ref>{{cite web |url=http://www.thalesgroup.com/Portfolio/Defence/LandJoint_Products_Survivability_LWD/?pid=6907 |title=Laser Warning Detector |publisher=Thales |date=2008-02-14 |access-date=2009-10-22 |archive-url=https://web.archive.org/web/20120308162001/http://www.thalesgroup.com/Portfolio/Defence/LandJoint_Products_Survivability_LWD/?pid=6907 |archive-date=2012-03-08 |url-status=dead }}</ref> ; {{flag|Germany}} :* Hensoldt<ref>{{cite web |url=http://www.hensoldt.net/ |title=Home |website=hensoldt.net}}</ref><ref>{{Cite web |title=Sensor Solutions {{!}} HENSOLDT |url=https://www.hensoldt.net/ |access-date=2022-05-09 |website=www.hensoldt.net}}</ref> ; {{flag|Israel}} :* Elbit Systems<ref>{{Cite web |title=EW Airborne "Suite" Defense Meets Drone Warfare {{!}} Elbit System |url=https://elbitsystems.com/blog/ew-airborne-suite-defense-meets-drone-warfare/ |access-date=2024-06-13 |website=www.elbitsystems.com}}</ref> ; {{flag|Pakistan}} :* Global Industrial Defence Solutions<ref>{{Cite web|url=http://www.gids.com.pk/lts|title=:: Gids - LTS ::|access-date=2015-04-07|archive-date=2022-09-28|archive-url=https://web.archive.org/web/20220928033145/http://www.gids.com.pk/lts|url-status=dead}}</ref> ; {{flag|South Korea}} :* Hanwha Systems<ref>{{cite web|url=https://www.hanwhasystems.com/en/business/defense/space/avonics02.do|title=LAH (Light Armed Helicopter)|publisher=Hanwha Systems|date=|archiveurl=https://web.archive.org/web/20250318234933/https://www.hanwhasystems.com/en/business/defense/space/avonics02.do|archivedate=18 March 2025|accessdate=8 November 2025|author1=}}</ref><ref>{{cite web|url=https://www.hanwhasystems.com/en/business/defense/space/avonics05.do|title=KUH (Korean Utility Helicopter)|publisher=Hanwha Systems|date=|archiveurl=https://web.archive.org/web/20250318233756/https://www.hanwhasystems.com/en/business/defense/space/avonics05.do|archivedate=18 March 2025|accessdate=8 November 2025|author1=}}</ref> ; {{flag|Turkey}} :* ASELSAN<ref>{{cite web|url=https://www.aselsan.com.tr/en/capabilities/electro-optic-systems/air-platforms/lias-laser-warning-receiver-system | title= ASELSAN LIAS}}</ref><ref>{{cite web|url=https://www.aselsan.com.tr/en/capabilities/electro-optic-systems/naval-platforms/lis-laser-warning-receiver-system | title= ASELSAN LIS}}</ref><ref>{{cite web|url=https://www.aselsan.com.tr/en/capabilities/electro-optic-systems/main-battle-tank-and-infantry-fighting-vehicle-sighting-applications/tlus-laser-warning-receiver-system | title= ASELSAN TLUS}}</ref> :* NERO Industry<ref>{{cite web|url=https://neroindustry.com/category/laser-warning-systems/ | title= Laser Warning Systems - UMAY - NERO Industry}}</ref> ; {{flag|United Kingdom}} :* BAE Systems<ref>{{cite web |url=http://www.baesystems.com/ProductsServices/eis_s2_si_lws.html |title=Laser Warning Systems |publisher=BAE Systems |date=2008-02-14 |access-date=2009-10-22 |archive-url=https://web.archive.org/web/20091106105512/http://www.baesystems.com/ProductsServices/eis_s2_si_lws.html |archive-date=2009-11-06 |url-status=dead }}</ref>

== Models == Some of the most newer laser warning systems used by the United Kingdom are:

*[https://www.sentinelphotonics.co.uk/detect/#laserd-max LASERD MAX] *[https://www.sentinelphotonics.co.uk/detect/#laserd-micro LASERD MICRO]

Some models used by US are listed:<ref>http://www.virtualacquisitionshowcase.com/document/1181/briefing{{Dead link|date=February 2020 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> * AN/AVR-2 and AN/AVR2A * AN/AAR-47 * AN/VVR-1 * AN/VVR-2

== See also == * Radar warning receiver

== References == {{reflist}}

== External links == * [https://www.aselsan.com.tr/en/capabilities/electro-optic-systems/air-platforms/lias-laser-warning-receiver-system ASELSAN LİAS for Airborne Platforms] * [https://www.aselsan.com.tr/en/capabilities/electro-optic-systems/naval-platforms/lis-laser-warning-receiver-system ASELSAN LİS for Naval Platforms] * [https://www.aselsan.com.tr/en/capabilities/electro-optic-systems/main-battle-tank-and-infantry-fighting-vehicle-sighting-applications/tlus-laser-warning-receiver-system ASELSAN TLUS for Ground Platforms] * [http://www.fas.org/man/dod-101/sys/ac/equip/an-avr-2.htm AN/AVR-2 LWS at fas] (airborne) * [https://web.archive.org/web/20110311111546/http://www.janes.com/articles/Janes-Electro-Optic-Systems/Goodrich-AN-VVR-1-Laser-Warning-Receiver-System-LWRS-United-States.html Goodrich AN/VVR-1 Laser Warning Receiver System (LWRS)] * [http://www.janes.com/extracts/extract/jeos/jeos9016.html Goodrich AN/VVR-2 Laser Warning Receiver System (LWRS)] (land laser warner) {{dead link|date=February 2015}} * [https://web.archive.org/web/20081104075342/http://www.eagleshore.com/rsc/lwr.htm High-speed FT Spectrometer for Laser Warning Receivers] * [http://blockyourid.com/~gbpprorg/mil/laser Battlefield Laser Warning Receiver] Homebrew laser warning receiver {{Lasers}}

Category:Warning systems Category:Military lasers