Pulse Energy ya Er: Magalasi a Laser Transmitters

M'magawo a laser ranging, target designation, ndi LiDAR, ma Er:Glass laser transmitters akhala akugwiritsidwa ntchito kwambiri ma mid-infrared solid-state lasers chifukwa cha chitetezo chawo chabwino cha maso komanso kapangidwe kake kakang'ono. Pakati pa magawo awo ogwirira ntchito, mphamvu ya pulse imagwira ntchito yofunika kwambiri pozindikira kuthekera kozindikira, kufalikira kwa mtunda, komanso momwe dongosolo lonse limayankhira. Nkhaniyi ikupereka kusanthula kwakuya kwa mphamvu ya pulse ya ma Er:Glass laser transmitters.

1. Kodi Mphamvu ya Kugunda N’chiyani?

Mphamvu ya pulse imatanthauza kuchuluka kwa mphamvu zomwe laser imatulutsa mu pulse iliyonse, yomwe nthawi zambiri imayesedwa mu millijoules (mJ). Ndi zotsatira za mphamvu yayikulu komanso nthawi ya pulse: E = P_nsonga×τKumene: E ndi mphamvu ya kugunda kwa mtima, P_nsonga ndi mphamvu yaikulu,τ ndi m'lifupi mwa kugunda kwa mtima.

Kwa ma laser a Er:galasi omwe amagwira ntchito pa 1535 nm—kutalika kwa nthawi mu gulu loteteza maso la Class 1—Mphamvu ya kugunda kwa mtima kwambiri imatha kupezeka pamene ikusunga chitetezo, zomwe zimapangitsa kuti zikhale zoyenera kwambiri kugwiritsidwa ntchito kunyamula komanso panja.

2. Pulse Energy Range ya Er: Magalasi agalasi

Kutengera kapangidwe kake, njira yopopera, ndi momwe akufunira kugwiritsa ntchito, ma transmitter a laser a Er:Glass amapereka mphamvu ya kugunda kamodzi kuyambira makumi a ma microjoules (μJ) ku ma millijoule makumi angapo (mJ).

Kawirikawiri, ma transmitter a Er:Glass laser omwe amagwiritsidwa ntchito mu ma module ang'onoang'ono amakhala ndi mphamvu ya pulse ya 0.1 mpaka 1 mJ. Kwa opanga ma target akutali, nthawi zambiri amafunika 5 mpaka 20 mJ, pomwe makina ankhondo kapena a mafakitale amatha kupitirira 30 mJ, nthawi zambiri amagwiritsa ntchito mapangidwe a dual-rod kapena multi-stage amplification kuti akwaniritse zotsatira zabwino.

Mphamvu zambiri za kugunda kwa mtima nthawi zambiri zimapangitsa kuti munthu azitha kuzindikira bwino, makamaka pakakhala zovuta monga zizindikiro zofooka zobwerera kapena kusokoneza chilengedwe pamalo akutali.

3. Zinthu Zomwe Zimakhudza Mphamvu ya Kugunda kwa Mtima

①Magwiridwe antchito a Pump Source

Er:Ma laser agalasi nthawi zambiri amapopedwa ndi ma laser diode (LDs) kapena ma flashlight. Ma LD amapereka magwiridwe antchito komanso opapatiza koma amafuna kuwongolera bwino kutentha ndi kuwongolera dera loyendetsa.

②Kuchuluka kwa Doping ndi Utali wa Ndodo

Zipangizo zosiyanasiyana zosungira mphamvu monga Er:YSGG kapena Er:Yb:Glass zimasiyana malinga ndi kuchuluka kwa doping ndi kutalika kwa mphamvu, zomwe zimakhudza mwachindunji mphamvu yosungira mphamvu.

③Ukadaulo wa Q-Switching

Kusintha kwa Q (monga, ndi makhiristo a Cr:YAG) kumachepetsa kapangidwe kake koma kumapereka kulondola kochepa kwa kuwongolera. Kusintha kwa Q (monga, ndi maselo a Pockels) kumapereka kukhazikika kwapamwamba komanso kuwongolera mphamvu.

④Kusamalira Kutentha

Pakakhala mphamvu zambiri zogunda, kutentha koyenera kuchokera ku ndodo ya laser ndi kapangidwe ka chipangizo ndikofunikira kuti zitsimikizire kuti zotulutsa zake zimakhala zokhazikika komanso zokhalitsa.

4. Kufananiza Mphamvu ya Kugunda ndi Zochitika Zogwiritsidwa Ntchito

Kusankha chotumizira cha laser cha Er:Glass choyenera kumadalira kwambiri momwe chikugwiritsidwira ntchito. Nazi zina mwazomwe zimagwiritsidwa ntchito nthawi zambiri komanso malangizo okhudzana ndi mphamvu ya pulse:

①Zipangizo Zoyezera Laser Zogwiritsidwa Ntchito Pamanja

Zinthu: yaying'ono, mphamvu yochepa, miyeso yafupipafupi kwambiri

Mphamvu Yoyenera ya Kugunda: 0.5–1 mJ

②Kupewa Zopinga za UAV

Zinthu: kutalika kwapakati mpaka kufupi, kuyankha mwachangu, kupepuka

Mphamvu Yolimbikitsa ya Kugunda: 1–5 mJ

③Opanga Zolinga Zankhondo

Zinthu: kulowa kwambiri, kuletsa kusokoneza, chitsogozo cha kugunda kwakutali

Mphamvu Yoyenera ya Kugunda: 10–30 mJ

④Machitidwe a LiDAR

Zinthu: kubwerezabwereza kwakukulu, kusanthula kapena kupanga mtambo wa mfundo

Mphamvu Yoyenera ya Kugunda: 0.1–10 mJ

5. Zochitika Zamtsogolo: Mphamvu Zambiri & Kuyika Mapaketi Ang'onoang'ono

Ndi kupita patsogolo kosalekeza mu ukadaulo wogwiritsa ntchito magalasi, kapangidwe ka mapampu, ndi zinthu zotenthetsera, ma transmitter a Er:Glass laser akusintha kukhala kuphatikiza mphamvu zambiri, liwiro lalikulu lobwerezabwereza, komanso miniaturization. Mwachitsanzo, machitidwe omwe amaphatikiza kukulitsa kwa magawo ambiri ndi mapangidwe achangu a Q-switched tsopano amatha kupereka mphamvu yoposa 30 mJ pa pulse iliyonse pomwe akusunga mawonekedwe ang'onoang'ono.—yabwino kwambiri poyezera kutalika komanso kugwiritsa ntchito chitetezo chodalirika kwambiri.

6. Mapeto

Mphamvu ya pulse ndi chizindikiro chofunikira kwambiri chowunikira ndikusankha ma transmitter a laser a Er:Glass kutengera zomwe zimagwiritsidwa ntchito. Pamene ukadaulo wa laser ukupitilirabe kusintha, ogwiritsa ntchito amatha kupeza mphamvu zambiri komanso kugwiritsa ntchito bwino zipangizo zazing'ono komanso zogwiritsa ntchito mphamvu zochepa. Kwa makina omwe amafuna magwiridwe antchito akutali, chitetezo cha maso, komanso kudalirika kwa magwiridwe antchito, kumvetsetsa ndikusankha mphamvu yoyenera ya pulse ndikofunikira kwambiri kuti makina azigwira ntchito bwino komanso kufunika kwake.

Ngati inu'Ngati mukufuna ma Er:Glass laser transmitters ogwira ntchito bwino, musazengereze kulankhulana nafe. Timapereka mitundu yosiyanasiyana yokhala ndi mphamvu ya pulse kuyambira 0.1 mJ mpaka kupitirira 30 mJ, yoyenera kugwiritsidwa ntchito m'njira zosiyanasiyana mu laser ranging, LiDAR, ndi target designation.