Ukuqonda uMjikelo woMsebenzi kwiSemiconductor Lasers: Intsingiselo enkulu emva kweParameter encinci

Kwitekhnoloji yale mihla ye-optoelectronic, ii-laser ze-semiconductor zigqama ngesakhiwo sazo esibambeneyo, ukusebenza kakuhle okuphezulu, kunye nokuphendula ngokukhawuleza. Badlala indima ebalulekileyo kwiinkalo ezifana nonxibelelwano, ukhathalelo lwempilo, ukusetyenzwa kwemizi-mveliso, kunye nokuziva / ukujikeleza. Nangona kunjalo, xa kuxoxwa ngokusebenza kwee-laser ze-semiconductor, enye iparameter ebonakala ilula kodwa ibaluleke kakhulu-umjikelo womsebenzi-uhlala ungahoywa. Eli nqaku lingena kwingqikelelo, ubalo, iimpembelelo, kunye nokubaluleka okubonakalayo komjikelo womsebenzi kwiinkqubo ze-laser semiconductor.

1. Yintoni uMjikelo woMsebenzi?

Umjikelo womsebenzi ngumlinganiselo ongena dimensionless osetyenziswa ukuchaza ubungakanani bexesha lelaser ekumo "kwimeko" ngaphakathi kwexesha elinye lophawu oluphindayo. Ngokuqhelekileyo ichazwa njengepesenti. Ifomula yile: Umjikelo woMsebenzi=(Ububanzi bePulse/Ixesha lePulse)×100%. Umzekelo, ukuba i-laser ikhupha i-1-microsecond pulse rhoqo kwii-microseconds ezili-10, umjikelo womsebenzi ngu: (1 μs/10 μs)×100%=10%.

2. Kutheni uMjikelo woMsebenzi ubalulekile?

Nangona ingumlinganiselo nje, umjikelo womsebenzi uchaphazela ngokuthe ngqo ulawulo lwe-thermal ye-laser, ixesha lokuphila, amandla okuphuma, kunye noyilo lwenkqubo iyonke. Makhe sichaze ukubaluleka kwayo:

① Ulawulo lwe-Thermal kunye neSixhobo ubomi bonke

Kwimisebenzi ye-high-frequency pulsed, umjikelo ophantsi womsebenzi uthetha ixesha elide "lokucima" phakathi kwee-pulses, ezinceda i-laser ipholile. Oku kunenzuzo ngakumbi kwizicelo eziphezulu zamandla, apho ukulawula umjikelo womsebenzi kunokunciphisa uxinzelelo lwe-thermal kunye nokwandisa ubomi besixhobo.

② Amandla okuPhuma kunye noLawulo lwe-Optical Intensity

Umjikelo womsebenzi ophezulu uphumela kumndilili omkhulu wemveliso ye-optical, ngelixa umjikelo womsebenzi ophantsi unciphisa amandla aphakathi. Ukulungelelanisa umjikelo womsebenzi kuvumela ukulungiswa kakuhle kwamandla emveliso ngaphandle kokutshintsha i-peak drive yangoku.

③ Impendulo yeNkqubo kunye noModyuli woMqondiso

Kwiinkqubo zonxibelelwano lwe-optical kunye ne-LiDAR, umjikelo womsebenzi uchaphazela ngokuthe ngqo ixesha lokuphendula kunye nezicwangciso zokumodareyitha. Umzekelo, kuluhlu lwe-laser ye-pulsed, ukuseta umjikelo ochanekileyo womsebenzi kuphucula ukubonwa komqondiso we-echo, kuphucula ukuchaneka komlinganiso kunye nobuninzi.

3. Imizekelo yeSicelo soMjikelo woMsebenzi

① LiDAR (Ukubonwa kweLaser kunye noKujika)

Kwiimodyuli ze-laser ye-1535nm, umjikelo ophantsi, ulungelelwaniso oluphezulu lwe-pulse lusetyenziswa ngokuqhelekileyo ukuqinisekisa ukuba zombini ubhaqo olude kunye nokhuseleko lwamehlo. Imijikelezo yemisebenzi isoloko ilawulwa phakathi kwe-0.1% kunye ne-1%, ukulinganisa amandla aphezulu aphezulu kunye nokusebenza okukhuselekileyo, okupholileyo.

② IiLaser zonyango

Kwizicelo ezinje ngonyango lwedermatological okanye uqhaqho lwelaser, imijikelo eyahlukeneyo yemisebenzi ikhokelela kwiziphumo ezahlukeneyo zobushushu kunye neziphumo zonyango. Umjikelo womsebenzi ophezulu ubangela ukufudumeza okuzinzileyo, ngelixa umjikelo ophantsi uxhasa ukukhutshwa kwepulsed ngoko nangoko.

③ Ukwenziwa kweMathiriyeli yeShishini

Kwi-laser marking kunye ne-welding, umjikelo womsebenzi uchaphazela indlela amandla afakwe ngayo kwizinto eziphathekayo. Ukulungelelanisa umjikelo womsebenzi ngundoqo wokulawula ubunzulu bokukrola kunye nokungena kwe-welding.

4. Ungawukhetha njani uMjikelo woMsebenzi oLungileyo?

Owona mjikelezo womsebenzi uxhomekeke kwisicelo esithile kunye neempawu zelaser:

①Umjikelo woMsebenzi oPhantsi (<10%)

Ifanelekile kwi-high-peak, izicelo ze-pulse ezimfutshane ezifana nokuqala okanye ukuphawula ngokuchanekileyo.

②Umjikelo oPhakathi woMsebenzi (10%–50%)

Ifanelekile kwiinkqubo ze-laser ye-pulsed ephindaphindayo.

③Umjikelo woMsebenzi oPhezulu (>50%)

Ukusebenza kwe-wave eqhubekayo (CW), esetyenziswa kwizicelo ezifana nokumpompa optical kunye nonxibelelwano.

Ezinye izinto ezinokuthi ziqwalaselwe ziquka ukuchithwa kwe-thermal, ukusebenza kwesekethe yomqhubi, kunye nokuzinza kwe-thermal ye-laser.

5. Isiphelo

Nangona umncinci, umjikelo womsebenzi yeyona parameter yoyilo kwiinkqubo ze-laser semiconductor. Ayichaphazeli kuphela imveliso yokusebenza kodwa kunye nokuzinza kwexesha elide kunye nokuthembeka kwenkqubo. Kuphuhliso lwelaser kwixesha elizayo kunye nokusetyenziswa, ulawulo oluchanekileyo kunye nokusetyenziswa okuguquguqukayo komjikelo womsebenzi kuya kubaluleka ekuphuculeni ukusebenza kakuhle kwenkqubo kunye nokwenza izinto ezintsha.

Ukuba unemibuzo engaphezulu malunga noyilo lweparamitha yelaser okanye usetyenziso, zive ukhululekile ukufikelela okanye ukushiya uluvo. Silapha ukunceda!