Pulse Energy of Er:Glass Laser Transmitters

Emikhakheni yokulinganisa i-laser, ukuqokwa kwe-target, kanye ne-LiDAR, ama-Er:Glass laser transmitters asesetshenziswa kabanzi ama-mid-infrared solid-state laser ngenxa yokuphepha kwawo okuhle kakhulu kwamehlo kanye nomklamo ohlangene. Phakathi kwamapharamitha awo okusebenza, amandla e-pulse adlala indima ebalulekile ekunqumeni ikhono lokuthola, ukumbozwa kwebanga, kanye nokuphendula kwesistimu iyonke. Lesi sihloko sinikeza ukuhlaziywa okujulile kwamandla e-pulse ama-Er:Glass laser transmitters.

1. Kuyini Amandla Okushaya Kwenhliziyo?

Amandla okushaya kwenhliziyo abhekisela enanini lamandla akhishwa yi-laser kukushaya kwenhliziyo ngakunye, ngokuvamile alinganiswa ngama-millijoule (mJ). Kungumkhiqizo wamandla aphezulu kanye nobude besikhathi sokushaya kwenhliziyo: E = P_isiqongo×τKuphi: U-E ungamandla okushaya kwenhliziyo, u-P_isiqongo amandla aphezulu,τ ububanzi be-pulse.

Kuma-laser ajwayelekile e-Er:Glass asebenza ku-1535 nm—ubude be-wavelength ebhendini elivikela amehlo leKlasi 1—amandla aphezulu okushaya kwenhliziyo angatholakala ngenkathi kugcinwa ukuphepha, okwenza zifaneleke kakhulu ekusetshenzisweni okuphathekayo nangaphandle.

2. I-Pulse Energy Range ye-Er:Ama-Glass Lasers

Kuye ngomklamo, indlela yokuphampa, kanye nokusetshenziswa okuhlosiwe, ama-transmitter e-laser e-Er:Glass athengiswayo anikeza amandla okushaya okukodwa kusukela kumashumi ama-microjoule (μJ) kuya kumashumi amaningana ama-millijoule (mJ).

Ngokuvamile, ama-Er:Glass laser transmitters asetshenziswa kumamojula amancane anobubanzi bamandla okushaya kusukela ku-0.1 kuya ku-1 mJ. Kwabaklami bezinhloso zebanga elide, ngokuvamile kudingeka ama-mJ angu-5 kuya ku-20, kuyilapho izinhlelo zempi noma zezinga lezimboni zingadlula ama-mJ angu-30, ngokuvamile zisebenzisa izakhiwo zokukhulisa ezinezinduku ezimbili noma ezinezigaba eziningi ukuze kufezwe umphumela ophezulu.

Amandla aphezulu okushaya kwenhliziyo ngokuvamile aholela ekusebenzeni okungcono kokubona, ikakhulukazi ngaphansi kwezimo ezinzima njengezimpawu zokubuya ezibuthakathaka noma ukuphazamiseka kwemvelo ezindaweni ezinde.

3. Izici Ezithinta Amandla Okushaya Kwenhliziyo

①Ukusebenza Komthombo Wephampu

I-Er: Ama-laser engilazi avame ukupompa ngama-laser diode (ama-LD) noma ama-flashlamps. Ama-LD anikeza ukusebenza kahle okuphezulu kanye nokuqina kodwa adinga ukulawulwa okuqondile kwesifunda sokushisa kanye nesishayelayo.

②Ukugxila Kwe-Doping kanye Nobude Benduku

Izinto ezahlukene zokusingatha ezifana ne-Er:YSGG noma i-Er:Yb:Glass ziyahlukahluka emazingeni azo okusebenzisa izidakamizwa kanye nobude bokukhula, okuthinta ngqo umthamo wokugcina amandla.

③Ubuchwepheshe be-Q-Switching

Ukushintshashintsha kwe-Q okungasebenzisi (isb., ngamakristalu e-Cr:YAG) kwenza isakhiwo sibe lula kodwa kunikeza ukunemba okulinganiselwe kokulawula. Ukushintshashintsha kwe-Q okusebenzayo (isb., ngamaseli e-Pockels) kunikeza ukuzinza okuphezulu nokulawula amandla.

④Ukuphathwa Kokushisa

Uma amandla okushaya kwenhliziyo ephezulu, ukushabalaliswa kokushisa okuphumelelayo kusuka enduku ye-laser kanye nesakhiwo sedivayisi kubalulekile ukuqinisekisa ukuzinza kokukhipha kanye nokuphila isikhathi eside.

4. Ukufanisa Amandla Okushaya Kwenhliziyo Nezimo Zokusebenza

Ukukhetha i-Er:Glass laser transmitter efanele kuncike kakhulu ekusetshenzisweni okuhlosiwe. Ngezansi kunezinye izimo ezivamile zokusetshenziswa kanye nezincomo zamandla okushaya kwenhliziyo ezihambisanayo:

①Ama-Rangefinder e-Laser abanjwe ngesandla

Izici: incane, amandla aphansi, izilinganiso zebanga elifushane eziphindaphindwayo kakhulu

Amandla Okushaya Okunconyiwe: 0.5–1 mJ

②Ububanzi be-UAV / Ukugwema Izithiyo

Izici: ububanzi obuphakathi kuya kobude, impendulo esheshayo, elula

Amandla Okushaya Okunconyiwe: 1–5 mJ

③Abaklami Bezinjongo Zempi

Izici: ukungena okuphezulu, ukulwa okunamandla kokuphazamiseka, isiqondiso sokushaya ibanga elide

Amandla Okushaya Okunconyiwe: 10–30 mJ

④Izinhlelo ze-LiDAR

Izici: izinga eliphezulu lokuphindaphinda, ukuskena noma ukukhiqizwa kwamafu ephuzu

Amandla Okushaya Okunconyiwe: 0.1–10 mJ

5. Izitayela Zesikhathi Esizayo: Amandla Aphezulu Nokupakisha Okuncane

Ngokuthuthuka okuqhubekayo kubuchwepheshe bokusebenzisa ingilazi, izakhiwo zephampu, kanye nezinto zokushisa, ama-Er:Glass laser transmitters ashintsha ngokuya ekuhlanganiseni amandla aphezulu, izinga eliphezulu lokuphindaphinda, kanye ne-miniaturization. Isibonelo, izinhlelo ezihlanganisa ukukhuliswa kwezigaba eziningi nemiklamo ye-Q-switched esebenzayo manje zingaletha ngaphezu kwama-30 mJ nge-pulse ngenkathi zigcina i-compact form factor.—ilungele ukulinganisa ibanga elide kanye nezinhlelo zokuzivikela ezinokwethenjelwa okuphezulu.

6. Isiphetho

Amandla e-pulse ayisibonakaliso esibalulekile sokusebenza sokuhlola nokukhetha ama-Er:Glass laser transmitters ngokusekelwe ezidingweni zohlelo lokusebenza. Njengoba ubuchwepheshe be-laser buqhubeka nokukhula, abasebenzisi bangafinyelela ekukhiqizweni kwamandla okuphezulu kanye nobubanzi obukhulu kumadivayisi amancane, asebenzisa amandla kahle. Kumasistimu adinga ukusebenza okude, ukuphepha kwamehlo, kanye nokuthembeka kokusebenza, ukuqonda nokukhetha ububanzi bamandla e-pulse obufanele kubalulekile ekwandiseni ukusebenza kahle kwesistimu kanye nenani.

Uma u'Uma ufuna ama-Er:Glass laser transmitters asebenza kahle kakhulu, zizwe ukhululekile ukuxhumana nathi. Sinikeza izinhlobo ezahlukene zamamodeli anezincazelo zamandla okushaya kusukela ku-0.1 mJ kuya ngaphezu kuka-30 mJ, afaneleka ezinhlelweni eziningi ezahlukene zokulinganisa i-laser, i-LiDAR, kanye nokuqokwa kwethagethi.