ʻO ka ʻenehana ʻike photoelectric holomua (Avalanche photodetector): He mokuna hou i ka hōʻike ʻana i nā hōʻailona mālamalama nāwaliwali

ʻO ka ʻenehana ʻike photoelectric holomua (Mea ʻike kiʻi avalanche): He mokuna hou i ka hōʻike ʻana i nā hōʻailona mālamalama nāwaliwali
I ka noiʻi ʻepekema, ʻo ka ʻike pololei ʻana i nā hōʻailona kukui nāwaliwali ke kī i ka wehe ʻana i nā kahua ʻepekema he nui. I kēia manawa, ua lawe mai kahi holomua noiʻi ʻepekema hou i nā loli koʻikoʻi i ka ʻike ʻana i nā hōʻailona kukui nāwaliwali. ʻO kamea ʻike kiʻi avalancheʻO ka moʻo i hoʻomohala ʻia e kahi hui noiʻi ʻepekema kaulana ma Kina, me kāna hana kūikawā a me nā pono, e wehe i kahi mokuna hou no ka ʻike ʻana i nā hōʻailona mālamalama nāwaliwali.

ʻAlanuimea ʻike kiʻinā huahana moʻo, e like me ke kumumanaʻo hoʻonui avalanche oAPD, ʻo ka hoʻonui ʻana he 10 a 100 mau manawa o ka mea ʻike hohonu PIN photoelectric maʻamau, me ke kiʻekiʻe o ka ʻike, ka walaʻau haʻahaʻa, ka hana ʻike maikaʻi a me nā pono koʻikoʻi ʻē aʻe. ʻO ka puka ʻana mai o kēia moʻo o nā huahana e kōkua i nā mea noiʻi e ʻike maikaʻi a kālailai i nā hōʻailona mālamalama nāwaliwali, a hoʻolaha hou i ka hohonu o ka noiʻi ʻepekema.
ʻO nā hiʻohiʻona nui o kēia moʻo huahana he walaʻau haʻahaʻa, loaʻa kiʻekiʻe a me ka fiber optical, nā koho hoʻopili spatial. ʻO ke ʻano kēia, inā he wahi hoʻokolohua a i ʻole kahi wahi paʻakikī o waho, hiki i ka huahana ke hoʻokō i ka ʻike ʻana i nā hōʻailona optical pololei, e hāʻawi ana i ke kākoʻo ʻikepili hilinaʻi no nā mea noiʻi. ʻAʻole wale kēia ʻenehana hou e hoʻomaikaʻi i ka pono o ka ʻike ʻana o nā hōʻailona optical, akā e hōʻemi pū i ka walaʻau i hana ʻia i ke kaʻina hana ʻike a hoʻomaikaʻi i ka pololei o ka ʻike ʻana.
ʻO ke kikoʻī, ʻo ka laulā o nā spectra pane e uhi ana i 300-1100nm a me 800-1700nm, me nā bandwidth 3dB a hiki i 200MHz, 500MHz, 1GHz a me 10GHz. ʻO kēia mau kikoʻī like ʻole a me nā palena e hiki ai i ka huahana ke hoʻololi i nā pono noiʻi ʻepekema like ʻole, a me kahi ākea o nā noi, me ka ʻike ʻana i nā hōʻailona optical nāwaliwali, ka ʻike ʻana i nā hōʻailona pulse optical wikiwiki, a me ke kamaʻilio quantum.
He mea kūpono ke haʻi ʻia ua kūkulu ʻia ka huahana i loko o ka photodiode avalanche, kaapuni hoʻonui walaʻau haʻahaʻa, kaapuni hoʻonui APD bias, a ʻo ka nalu ʻike o ka moʻo holoʻokoʻa o nā huahana e uhi ana iā 300nm-1700nm. Hiki i kēia hoʻolālā i ka huahana ke hoʻokō i ka ʻike ʻike kiʻekiʻe, akā e hōʻemi pono i ka walaʻau, hoʻomaikaʻi i ka pololei o ka ʻike ʻana. Eia kekahi, ʻo nā hiʻohiʻona koho o ka fiber optical a me ka hoʻopili spatial e hiki ai i ka huahana ke hoʻokō i ka ʻike hōʻailona pololei i nā ʻano ʻano paʻakikī.
I ka pōkole, ʻo ka hoʻomohala ʻana o kēia avalanchemea ʻike photoelectricʻO ka moʻo he mea kānalua ʻole he holomua nui ia i ka ʻenehana ʻike photoelectric. ʻO ka puka ʻana mai o kēia huahana e hāʻawi i kahi hiki hou no ka ʻike ʻana i nā hōʻailona mālamalama nāwaliwali a puni ka honua. Manaʻo mākou e pāʻani kēia huahana i kahi kuleana nui aʻe i ka noiʻi ʻepekema e hiki mai ana, e paipai i ka holomua o ka ʻepekema, a lawelawe maikaʻi i ka hoʻomohala ʻana o ke kaiāulu kanaka.