ʻO ke kumu hana o ka laser semiconductor

Kuina hana olaser semiconductor

ʻO ka mea mua, ua hoʻokomo ʻia nā koi parameter no nā lasers semiconductor, ʻoi aku ka nui o nā ʻano aʻe:
1. Photoelectric hana: me ka extinction ratio, dynamic linewidth a me nā ʻāpana ʻē aʻe, pili pono kēia mau ʻāpana i ka hana o nā laser semiconductor i nā ʻōnaehana kamaʻilio.
2. Nā ʻāpana hoʻonohonoho: e like me ka nui o ka luminous a me ka hoʻonohonoho ʻana, ka wehewehe ʻana i ka hopena o ka unuhi, ka nui o ka hoʻonohonoho ʻana a me ka nui outline.
3. Ka lōʻihi o ka nalu: ʻO ka lōʻihi o ka nalu o ka laser semiconductor he 650 ~ 1650nm, a he kiʻekiʻe ka pololei.
4. ʻO ka paepae (Ith) a me ka hana o kēia manawa (lop): Hoʻoholo kēia mau palena i nā kūlana hoʻomaka a me ke kūlana hana o ka laser semiconductor.
5. Ka mana a me ka uila: Ma ke ana ʻana i ka mana, ka uila a me ke au o ka laser semiconductor ma ka hana, hiki ke huki ʻia nā pihi PV, PI a me IV e hoʻomaopopo i kā lākou ʻano hana.

Ke kumu hana
1. Loaʻa i nā kūlana: Ua hoʻokumu ʻia ka hoʻoili ʻana o nā mea lawe uku i ka lasing medium (active region). I loko o ka semiconductor, hōʻike ʻia ka ikehu o nā electrons e kahi ʻano o nā pae ikehu kokoke mau. No laila, ʻoi aku ka nui o ka helu o nā electrons ma lalo o ka hui conduction ma ke kūlana ikehu kiʻekiʻe ma mua o ka helu o nā puka ma luna o ka puʻu valence ma ka mokuʻāina haʻahaʻa ma waena o nā ʻāpana ʻelua o ka ikehu e hoʻokō i ka hoʻohuli ʻana. ka helu ʻāpana. Loaʻa kēia ma ka hoʻopili ʻana i ka homojunction a i ʻole heterojunction a hoʻokomo i nā mea lawe pono i loko o ka papa hana e hoʻoulu ai i nā electrons mai ka haʻahaʻa haʻahaʻa haʻahaʻa valence band a hiki i ke kiʻekiʻe o ka ikehu conduction band. Ke hui hou ka heluna nui o nā electrons i ka mokuʻāina o ka heluna kanaka i hoʻohuli ʻia me nā lua, hiki ke hoʻoulu ʻia.
2. I mea e loaʻa maoli ai ka hoʻoulu ʻia ʻana o ka radiation, pono e hānai ʻia ka radiation i hoʻoulu ʻia i nā manawa he nui i ka resonator optical e hana i ka oscillation laser, ua hoʻokumu ʻia ka resonator o ka laser e ka ʻili kūlohelohe o ka aniani semiconductor e like me ke aniani, maʻamau. uhi ʻia ma ka hope o ke kukui me kahi kiʻiʻoniʻoni dielectric multilayer kiʻekiʻe, a ua uhi ʻia ka ʻili maʻemaʻe me kahi kiʻiʻoniʻoni hōʻemi. No ka Fp cavity (Fabry-Perot cavity) semiconductor laser, hiki ke hana maʻalahi ka FP cavity ma o ka hoʻohana ʻana i ka mokulele cleavage kūlohelohe e kū pono ana i ka mokulele junction pn o ka aniani.
(3) I mea e hana ai i kahi oscillation paʻa, pono e hiki i ka laser medium ke hāʻawi i kahi waiwai nui e uku ai i ka nalowale o ka optical i hoʻokumu ʻia e ka resonator a me ka nalowale i hoʻoiho ʻia e ka puka laser mai ka ʻili o ka lua, a hoʻonui mau i ka kahua māmā i loko o ka lua. Pono e loaʻa i kēia ka ikaika o kēia manawa, ʻo ia hoʻi, ua lawa ka hoʻololi ʻana o ka helu particle, ʻoi aku ka kiʻekiʻe o ke kiʻekiʻe o ka hoʻololi ʻana o ka helu particle, ʻoi aku ka nui o ka loaʻa, ʻo ia hoʻi, pono e hoʻokō ke koi i kahi kūlana paepae o kēia manawa. I ka hiki ʻana o ka laser i ka paepae, hiki ke hoʻoulu ʻia ke kukui me kahi lōʻihi hawewe kikoʻī i loko o ka lua a hoʻonui ʻia, a ma hope e hana i ka laser a me ka hoʻomau mau.

Pono hana
1. ʻO ka bandwidth modulation a me ka helu: ʻo nā lasers semiconductor a me kā lākou ʻenehana modulation he mea koʻikoʻi i ke kamaʻilio optical uea, a ʻo ka bandwidth modulation a me ka helu e pili pono i ka maikaʻi kamaʻilio. ʻO ka laser modulated kūloko (laser modulated pololei) kūpono no nā ʻano ʻokoʻa i ke kamaʻilio fiber optical ma muli o kona wikiwiki wikiwiki a me ke kumu kūʻai haʻahaʻa.
2. Nā hiʻohiʻona hiʻohiʻona a me nā hiʻohiʻona modulation: Hāʻawi ka Semiconductor i nā lasers manaʻo (DFB laser) ua lilo i kumu kukui koʻikoʻi i ke kamaʻilio fiber optical a me ke kamaʻilio optical space ma muli o kā lākou mau hiʻohiʻona spectral maikaʻi loa a me nā hiʻohiʻona modulation.
3. ʻO ke kumukūʻai a me ka hana nui: Pono nā lasers Semiconductor e loaʻa nā pono o ka haʻahaʻa haʻahaʻa a me ka hana nui e hoʻokō i nā pono o ka hana nui a me nā noi.
4. Ka hoʻohana ʻana i ka mana a me ka hilinaʻi: Ma nā hiʻohiʻona noiʻi e like me nā kikowaena data, pono nā laser semiconductor i ka hoʻohana haʻahaʻa haʻahaʻa a me ka hilinaʻi kiʻekiʻe e hōʻoia i ka hana paʻa lōʻihi.