Masiku ano, tidziwitsa "monochromatic" laser mpaka kufika kwambiri - mtengo wopapatiza. Kutuluka kwake kumadzaza minda yambiri ya laser, ndipo m'zaka zaposachedwa kumagwiritsidwa ntchito kwambiri pakuwoneka bwino kwa zokoka, kuyikapo, kumathandizanso kulumikizana, kumathandizira kulumikizana kopambana ndi magawo "omwe ndi" ntchito "yomwe siyingangowonjezera mphamvu ya laser.
Kodi mtengo wopapatika ndi uti?
Mawu akuti "m'lifupi" amatanthauza kukula kwa mzere wa laser mu dalipende, yomwe nthawi zambiri imawerengedwa molingana ndi theka la nsonga zodzaza ndi mawonekedwe a Spectrum (FWHM). The Ridewidth imakhudzidwa kwambiri ndi ma radiation tokha a ma atomu osangalatsidwa ndi ma atomu, gawo la phokoso, kugwedeza makina a wotsutsa, Jitter ya Kutentha ndi Zinthu Zina zakunja ndi Zinthu Zina zakunja. Ocheperako Mtengo wa mzere m'lifupi, kutalika kwambiri kuchotsa kwa mawonekedwe, ndiko kuti, zabwinoko zonona za laser. Lasers wokhala ndi mawonekedwe otere nthawi zambiri amakhala ndi gawo laling'ono kwambiri kapena phokoso la pafupipafupi komanso phokoso lalikulu kwambiri. Nthawi yomweyo, ang'onoang'ono amtundu wa mzere wa laser, wamphamvu kuphatikiza zogwirizana, zomwe zimawonekera ngati kutalika kwakutali kwambiri.
Kuzindikira ndi kugwiritsa ntchito kwa msewu wopapatiza
Kuchepa ndi kuchuluka kwa chibadwa cholumikizira cha laser, ndizosatheka kuzindikira molunjika kwa nyali yopapatiza yongodalira malo achikhalidwe omwe. Pofuna kuzindikira ntchito yopenda yopapatiza yopapatiza, nthawi zambiri pamafunika kugwiritsa ntchito zosefera, ndikusankha madera ena kuti achepetse mitundu yochepa kwambiri pakati pa mitundu yochepa kapena yocheperako kapena ngakhale pang'ono kokha. Pankhaniyi, nthawi zambiri zimakhala zofunika kuwongolera kukopa kwa phokoso pazama la laser, ndikuchepetsa kukula kwa mizere yopangidwa ndi kugwedezeka kwa malo akunja; Nthawi yomweyo, imaphatikizidwanso ndi kusanthula kwa gawo la gawo kapena kachulukidwe kake kuti amvetsetse gwero la phokoso ndikutha kukwaniritsa mtengo wa loser, kuti akwaniritse mtengo wopapatiza wocheperako.
Tiyeni tiwone kukwaniritsidwa kwa ntchito yopapatiza ya magulu angapo a Lasers.
Lamiconduct Lasers ali ndi zabwino za kukula, kuchuluka kwambiri, moyo wautali komanso phindu lachuma.
Makina owoneka bwino (FP) Optical Resonator omwe amagwiritsidwa ntchito mwamwamboSemiconductor LasersNthawi zambiri oscillates mu mitundu yambiri-istristinal mode, ndipo mzere wotulutsa mbali umakhala waukulu kwambiri, motero ndikofunikira kuwonjezera mawonedwe opepuka kuti apeze gawo la mulifupi.
Kugawana ndemanga (DFB) ndikugawa Bragg Stopraction (DRB) ndi makonda awiri amkati mwamitsenkhulidwe semiconductor a Lasers. Chifukwa cha kuchuluka kochepa komanso kusankhidwa bwino kwamphamvu, ndikosavuta kukwaniritsa zotulutsa zingapo zopapatiza. Kusiyanitsa kwakukulu pakati pa nyumba ziwiri ndi malo owoloka: Kapangidwe ka DFB nthawi zambiri kumagawana kapangidwe kake kake kameneka, ndipo okhazikika a DBR nthawi zambiri amakhala ndi mawonekedwe owonetsera ndi omwe amaphatikizidwa pamwamba. Kuphatikiza apo, a DFB Lasers amagwiritsa ntchito masiketi ophatikizidwa ndi kusiyana kwa mawu otsika komanso mawonekedwe otsika. Ma Lasers a DRB amagwiritsa ntchito mabatani apadziko lapansi ndi chosiyanitsa komanso chododometsa. Zomangira zonse ziwiri zimakhala ndi mawonekedwe apamwamba aulere ndipo zimatha kukoka kwa HighledDfb laser. Kuphatikiza apo, ukadaulo wakunja wamaso, womwe umagwiritsa ntchito zinthu zakunja kuti mudziwe kuwala kwa semiconductor ya semiconduct ya semiconduct.
(2) lasers
Lasers a Lasers ali ndi kampuya kwambiri yosintha bwino, yabwino kwambiri komanso yophatikiza kwambiri, yomwe ndi mitu yotentha yofufuzira mu laser. M'malingaliro a zidziwitso, mafinya aphiri amakhala ndi malingaliro abwino okhala ndi njira zolankhulirana ndi zithunzi zamitundu yamakono pamsika. Chomera chimodzi chokwanira chimodzi ndi maulendo osenda ndi miyendo yopapatiza, phokoso lotsika komanso mgwirizano wabwino wasanduka njira yofunika yokula.
Kuchita masewera olimbitsa thupi kumayiko ena ndi chimbale cha fiber kuti akwaniritse zotulutsa zazing'onoting'ono, nthawi zambiri molingana ndi kapangidwe kake kamene kamakhazikika mu DFB Pakati pawo, njira yogwirira ntchito dfb ndi ma dbr osakwatiwa pafupipafupi ndizofanana ndi DFB ndi DBR Semiconductor Lasers.
Monga taonera pa Chithunzi 1, DFB fibet ndikulemba zogawika bragget mu fiber. Chifukwa chakuti ntchito yogwira ntchito ya Oscillator imakhudzidwa ndi nthawi ya fiber, njira yayitali imasankhidwa kudzera munkhoya logawidwa. Wosunga laser wa DBBS amapangidwa ndi makonda a ragg bragg, ndipo njira imodzi yolewerera imasankhidwa ndi gulu lopapatiza ndi makonda owoneka bwino. Komabe, chifukwa cha okhazikika nthawi yayitali, kapangidwe kovuta ndi kusowa kwa makina ogwirira ntchito pafupipafupi, mimbulu yowoneka bwino imakonda kudumpha, ndipo ndizovuta kugwira ntchito motalika kwa nthawi yayitali.
Chithunzi 1, mapangidwe awiri ofanana a pafupipafupimafinya
Post Nthawi: Nov-27-2023