Pulse Energy o Er:Kaihe Taiaho Kaituku

I roto i ngā mara o te whānuitanga o te taiaho, te tohu ūnga, me te LiDAR, kua whakamahia whānuitia ngā tuku taiaho Er:Glass hei taiaho totoka waenga-infrared nā te mea he pai te haumaru o te kanohi me te hoahoa kiato. I roto i ā rātou tawhā mahi, he mea nui te kaha o te pā ki te whakatau i te kaha ki te kite, te whānuitanga o te whānuitanga, me te urupare whānui o te pūnaha. Ka tukuna e tēnei tuhinga he tātaritanga hohonu o te kaha pā o ngā tuku taiaho Er:Glass.

1. He aha te Pūngao Pāpā?

Ko te pūngao pātī e pā ana ki te nui o te pūngao e tukuna ana e te taiaho i roto i ia pātī, e inehia ana i roto i ngā mirijoule (mJ). Ko te hua tēnei o te mana tihi me te roa o te pātī: E = P_tihi×τ. Kei hea: Ko E te pūngao pāorooro, P_tihi ko te mana tino teitei,τ ko te whānui o te pāorooro.

Mō ngā taiaho Er:Karāhe noa e mahi ana i te 1535 nm—he roangaru i roto i te roopu haumaru-kanohi Akomanga 1—ka taea te whakatutuki i te kaha pāorooro teitei me te pupuri tonu i te haumaru, kia tino pai ai mō ngā mahi kawe me ngā mahi o waho.

2. Awhe Pungao Pulse o Er: Lasers Karaihe

I runga anō i te hoahoa, te tikanga papu, me te whakamahinga e whakaarohia ana, ka tukuna e ngā tuku hiko arumoni Er:Glass te kaha kotahi-pānga mai i ngā tekau microjoules (μJ) ki ngā tekau o ngā mirijoule (mJ).

Ko te tikanga, ko ngā tuku hiko Er:Glass e whakamahia ana i roto i ngā kōwae whāiti he whānuitanga pūngao pāoro kei waenganui i te 0.1 ki te 1 mJ. Mō ngā tohu ūnga tawhiti, e hiahiatia ana te 5 ki te 20 mJ, engari ko ngā pūnaha hōia, ahumahi rānei ka neke ake i te 30 mJ, he maha ngā wā ka whakamahia ngā hanganga whakanui rua-rākau, maha-wāhanga rānei hei whakatutuki i te putanga teitei ake.

Ko te kaha o te pāorooro ka hua ake he mahi kimi pai ake, inā koa i raro i ngā āhuatanga uaua pēnei i ngā tohu whakahoki ngoikore, i te pokanoa rānei o te taiao i ngā tawhiti roa.

3. Ngā Take e Pā Ana ki te Pūngao o te Pāpā

①Te Mahi Pūtake Papu

Er: Ko ngā taiaho karāhe ka pupuhihia e ngā taiaho taiaho (LD) me ngā rama uira. He nui ake te whai huatanga me te kiato o ngā LD engari me tino tika te whakahaere i te wera me te ara iahiko taraiwa.

②Te Kukū Doping me te Roa o te Tokotoko

He rerekē ngā taumata tāpiringa me te roa o te whakanui i ngā rauemi manaaki rerekē pērā i te Er:YSGG, te Er:Yb:Karāhe rānei, ā, he pānga tika tēnei ki te kaha rokiroki pūngao.

③Hangarau Whakawhiti-Q

Mā te whakawhiti-Q kore mahi (hei tauira, me ngā tioata Cr:YAG) ka māmā ake te hanganga engari he iti noa te tika o te whakahaere. Mā te whakawhiti-Q hohe (hei tauira, me ngā pūtau Pockels) ka nui ake te pumau me te whakahaere pūngao.

④Whakahaere Wera

I ngā kaha pātītī tiketike, he mea nui te mararatanga wera whai hua mai i te tokotoko taiaho me te hanganga o te taputapu kia mau ai te pumau me te roa o te putanga.

4. Te Whakataurite i te Pūngao Pāhekoheko ki ngā Horopaki Taupānga

Ko te whiriwhiri i te tuku hiko Er:Grass tika e whakawhirinaki ana ki te whakamahinga e whakaarohia ana. Kei raro nei ētahi tauira whakamahinga noa me ngā taunakitanga pūngao pahū e pā ana:

①Ngā Ine Awhe Reiti ā-Ringa

Ngā Āhuatanga: kiato, iti te mana, auau teitei, inenga poto-awhe

Pūngao Pāpāho e Manakohia ana: 0.5–1 mJ

②Te Whakaterenga UAV / Te Ārai i ngā Ārai

Ngā Āhuatanga: tawhiti waenga ki te tawhiti, urupare tere, mama

Pūngao Pāpāho e Manakohia ana: 1–5 mJ

③Ngā Tohunga Whāinga Hoia

Ngā Āhuatanga: te urunga nui, te kaha ārai-pokanoa, te arataki patu tawhiti

Pūngao Pāpā e Manakohia ana: 10–30 mJ

④Ngā Pūnaha LiDAR

Ngā Āhuatanga: te tere o te tāruarua, te matawai, te whakaputa kapua tohu rānei

Pūngao Pāpā e Manakohia ana: 0.1–10 mJ

5. Ngā Auahatanga o te Ao: Te Pūngao Nui me te Tākai Kiato

I te haere tonu o ngā whanaketanga o te hangarau tāpiri karāhe, ngā hanganga papu, me ngā rauemi wera, kei te whanake haere ngā tuku hiko Er:Glass ki te whakakotahitanga o te kaha teitei, te tere whakahokinga teitei, me te whakaitiiti. Hei tauira, ko ngā pūnaha e whakauru ana i te whakanui maha-wāhanga me ngā hoahoa Q-switched kaha ka taea te tuku neke atu i te 30 mJ ia pāhi me te pupuri tonu i te āhua kiato.—he mea tino pai mō te ine tawhiti me ngā tono parepare pono-tiketike.

6. Whakamutunga

Ko te pūngao pātītī he tohu mahi matua mō te aromatawai me te whiriwhiri i ngā tuku hiko Er:Glass i runga i ngā whakaritenga tono. I te whanaketanga tonu o ngā hangarau taitītī, ka taea e ngā kaiwhakamahi te whakatutuki i te putanga pūngao teitei ake me te whānuitanga whānui ake i roto i ngā taputapu iti ake, he pai ake te whakamahi i te mana. Mō ngā pūnaha e hiahia ana ki te mahi tawhiti, te haumaru kanohi, me te pono o te mahi, he mea nui te mārama me te whiriwhiri i te whānuitanga pūngao pātītī tika hei whakanui ake i te pai me te uara o te pūnaha.

Ki te mea koe'Ki te rapu koe i ngā tuku hiko Er:Glass tino pai, tēnā whakapā mai. He maha ngā tauira e tukuna ana e mātou me ngā whakatakotoranga pūngao pāorooro mai i te 0.1 mJ ki te neke atu i te 30 mJ, e tika ana mō te whānuitanga o ngā tono i roto i te whakatere hiko, LiDAR, me te tohu ūnga.