Kumvetsetsa Ntchito Yozungulira mu Semiconductor Lasers: Tanthauzo Lalikulu Kumbuyo Kwa Parameter Yaing'ono

Muukadaulo wamakono wa optoelectronic, ma semiconductor lasers amawonekera bwino ndi mawonekedwe awo ophatikizika, kuchita bwino kwambiri, komanso kuyankha mwachangu. Amatenga gawo lofunikira m'magawo monga kulumikizana, chisamaliro chaumoyo, kukonza mafakitale, komanso kuzindikira / kuyang'ana. Komabe, pokambirana za magwiridwe antchito a ma semiconductor lasers, gawo limodzi lomwe limawoneka losavuta koma lofunika kwambiri - kuzungulira kwa ntchito - nthawi zambiri silimanyalanyazidwa. Nkhaniyi imalowa mu lingaliro, kuwerengera, tanthauzo, komanso kufunikira kwa ntchito yozungulira mu semiconductor laser system.

1. Kodi Ntchito Yozungulira Ndi Chiyani?

Duty cycle ndi chiŵerengero chopanda malire chomwe chimagwiritsidwa ntchito kufotokoza nthawi yomwe laser ili "pa" mkati mwa nthawi imodzi ya chizindikiro chobwerezabwereza. Amawonetsedwa ngati peresenti. Njira yake ndi: Duty Cycle=(Pulse Width/Nthawi ya Pulse)×100%. Mwachitsanzo, ngati laser imatulutsa kugunda kwa 1-microsecond pa ma microseconds 10 aliwonse, ntchito yake ndi: (1 μs/10 μs)×100%=10%.

2. Chifukwa Chiyani Ntchito Yozungulira Ili Yofunika?

Ngakhale ndi chiŵerengero chabe, kuzungulira kwa ntchito kumakhudza mwachindunji kasamalidwe ka matenthedwe a laser, moyo wautali, mphamvu zotulutsa, ndi kapangidwe kake kachitidwe. Tiyeni tifotokoze kufunikira kwake:

① Thermal Management ndi Chipangizo Nthawi Zonse

Pochita ma pulsed othamanga kwambiri, kutsika kwantchito kumatanthauza nthawi "zotalikira" pakati pa ma pulse, zomwe zimathandiza laser kuziziritsa. Izi ndizothandiza makamaka pamapulogalamu amphamvu kwambiri, komwe kuwongolera magwiridwe antchito kumatha kuchepetsa kupsinjika kwamafuta ndikuwonjezera moyo wa chipangizocho.

② Mphamvu Zotulutsa ndi Optical Intensity Control

Kugwira ntchito kwapamwamba kumapangitsa kuti pakhale kuchuluka kwa kuwala kwapakati, pomwe kutsika kwantchito kumachepetsa mphamvu zambiri. Kusintha kozungulira kwantchito kumathandizira kukonza bwino mphamvu zotulutsa popanda kusintha nsonga yamagetsi.

③ Kuyankha Kwadongosolo ndi Kusintha kwa Signal

Mukulankhulana kwa kuwala ndi machitidwe a LiDAR, kuzungulira kwa ntchito kumakhudza mwachindunji nthawi yoyankhira ndi masinthidwe osinthika. Mwachitsanzo, mu pulsed laser kuyambira, kuyika kozungulira koyenera kumawongolera kuzindikira kwa ma echo, kumapangitsa kuti muyeso ukhale wolondola komanso pafupipafupi.

3. Zitsanzo za Kugwiritsa Ntchito Ntchito Yozungulira

① LiDAR (Laser Detection and Rang)

Mu ma modules a 1535nm a laser, kutsika kwapang'onopang'ono, kusinthasintha kwapamwamba kwambiri kumagwiritsidwa ntchito kuwonetsetsa kuti kuzindikirika kwautali komanso chitetezo cha maso. Mayendedwe a ntchito nthawi zambiri amawongoleredwa pakati pa 0.1% ndi 1%, kulinganiza mphamvu zapamwamba kwambiri ndi ntchito yotetezeka, yozizira.

② Ma laser Medical

Muzogwiritsa ntchito ngati chithandizo cha dermatological kapena opareshoni ya laser, machitidwe osiyanasiyana amabweretsa zotsatira zosiyanasiyana zamatenthedwe ndi zotsatira zakuchiritsa. Kuzungulira kwa ntchito yayikulu kumayambitsa kutentha kosalekeza, pomwe kutsika kwantchito kumathandizira kutulutsa kwapang'onopang'ono.

③ Industrial Material Processing

Pakuyika chizindikiro ndi kuwotcherera kwa laser, kuzungulira kwa ntchito kumakhudza momwe mphamvu imayikidwira muzinthu. Kusintha ntchito mkombero ndi chinsinsi kulamulira chosema kuya ndi kuwotcherera malowedwe.

4. Kodi Mungasankhe Bwino Ntchito Mkombero?

Kuzungulira koyenera kwa ntchito kumatengera mawonekedwe ndi mawonekedwe a laser:

①Nthawi Yocheperako (<10%)

Ndiwoyenera pamapulogalamu apamwamba kwambiri, othamanga pang'ono ngati kuyika chizindikiro kapena kulondola.

②Nthawi Yapakati Ntchito Yozungulira (10%–50%)

Oyenera makina obwerezabwereza a laser pulsed.

③Ntchito Yokwera Kwambiri (> 50%)

Approaching Continuous Wave (CW) Opaleshoni, yomwe imagwiritsidwa ntchito ngati kupopera kwamagetsi ndi kulumikizana.

Zina zomwe ziyenera kuganiziridwa zikuphatikiza kuthekera kwa kutentha kwamafuta, magwiridwe antchito a driver, komanso kukhazikika kwamafuta a laser.

5. Mapeto

Ngakhale yaying'ono, kuzungulira kwa ntchito ndi gawo lofunikira kwambiri pamakina a laser semiconductor. Zimakhudza osati zotsatira zogwira ntchito komanso kukhazikika kwa nthawi yaitali ndi kudalirika kwa dongosolo. Pachitukuko chamtsogolo cha laser ndikugwiritsa ntchito, kuwongolera molondola komanso kusinthasintha kwa kayendetsedwe ka ntchito kumakhala kofunikira pakupititsa patsogolo magwiridwe antchito adongosolo ndikupangitsa luso.

Ngati muli ndi mafunso ambiri okhudza kapangidwe ka laser parameter kapena kugwiritsa ntchito, omasuka kusiya ndemanga kapena kusiya ndemanga. Tabwera kudzathandiza!