ʻO ka nānā ʻana o ka hoʻomohala laser semiconductor kiʻekiʻe ma ka ʻāpana mua

ʻO ka manaʻo nui o ka mana kiʻekiʻelaser semiconductorhoʻomohala ʻāpana ʻekahi

Ke hoʻomau nei ka maikaʻi a me ka mana, nā diodes laser (mea hoʻokele laser diodes) e hoʻomau i ka pani ʻana i nā ʻenehana kuʻuna, a laila hoʻololi i ke ʻano o ka hana ʻana a hiki i ka hoʻomohala ʻana i nā mea hou. Ua kaupalena ʻia ka hoʻomaopopo ʻana i nā hoʻomaikaʻi koʻikoʻi o nā laser semiconductor kiʻekiʻe. Ua hōʻike mua ʻia ka hoʻololi ʻana o nā electrons i nā lasers ma o semiconductors i ka makahiki 1962, a ua ukali ʻia nā ʻano like ʻole o nā holomua hoʻohui i alakaʻi i nā holomua nui i ka hoʻololi ʻana o nā electrons i nā lasers kiʻekiʻe. Ua kākoʻo kēia mau holomua i nā noi koʻikoʻi mai ka mālama ʻana i ka optical a hiki i ka networking optical i kahi ākea o nā kahua ʻoihana.

ʻO ka loiloi ʻana i kēia mau holomua a me kā lākou holomua hui e hōʻike ana i ka hiki ke loaʻa ka hopena ʻoi aʻe a ʻoi aku ka palahalaha ma nā wahi he nui o ka hoʻokele waiwai. ʻOiaʻiʻo, me ka hoʻomaikaʻi mau ʻana o nā laser semiconductor kiʻekiʻe, ʻo kāna kahua noi e hoʻolōʻihi i ka hoʻonui ʻana, a he hopena koʻikoʻi i ka ulu waiwai.

Kiʻi 1: Hoʻohālikelike o ka luminance a me ke kānāwai o Moore o nā laser semiconductor mana kiʻekiʻe.

ʻO nā lasers paʻa paʻa paʻa diode a menā laser fiber

ʻO nā holomua o nā laser semiconductor mana kiʻekiʻe ua alakaʻi pū i ka hoʻomohala ʻana i ka ʻenehana laser downstream, kahi e hoʻohana mau ʻia ai nā laser semiconductor e hoʻoulu (pump) i nā kristal doped (nā lasers solid-state diode-pumped) a i ʻole nā ​​doped fibers (fiber lasers).

ʻOiai hāʻawi nā laser semiconductor i ka ikehu laser maikaʻi, liʻiliʻi, a me nā kumu kūʻai haʻahaʻa, loaʻa iā lākou ʻelua mau palena nui: ʻaʻole lākou e mālama i ka ikehu a ua kaupalena ʻia ko lākou kukui. Basically, nui nā noi e koi i ʻelua lasers pono; Hoʻohana ʻia kekahi no ka hoʻololi ʻana i ka uila i ka hoʻokuʻu ʻana i ka laser, a hoʻohana ʻia kekahi e hoʻonui i ka ʻōlinolino o ia hoʻokuʻu.

ʻO nā lasers paʻa paʻa paʻa diode.
I ka hopena o nā makahiki 1980, ua hoʻomaka ka hoʻohana ʻana i nā laser semiconductor e puhi i nā laser solid-state e loaʻa i ka hoihoi pāʻoihana nui. ʻO nā lasers solid-state diode-pumped (DPSSL) e hoʻemi nui i ka nui a me ka paʻakikī o nā ʻōnaehana hoʻokele wela (ma mua o nā mea hoʻomaʻamaʻa pōʻaiapuni) a loaʻa nā modula, i hoʻohana mua ʻia i nā kukui arc e puhi i nā kristal laser solid-state.

Ua koho ʻia ka lōʻihi hawewe o ka laser semiconductor ma muli o ka overlap o nā hiʻohiʻona spectral absorption me ka loaʻa ʻana o ka laser solid-state, hiki ke hoʻemi nui i ka ukana wela ke hoʻohālikelike ʻia me ka wideband emission spectrum o ke kukui arc. Ke noʻonoʻo nei i ka kaulana o nā lasers neodymium-doped e hoʻokuʻu ana i ka hawewe 1064nm, ua lilo ka laser semiconductor 808nm i mea waiwai loa i ka hana laser semiconductor no nā makahiki he 20.

ʻO ka hoʻomaikaʻi maikaʻi ʻana o ka diode pumping o ka lua o ka hanauna i hiki ke hoʻonui ʻia e ka hoʻonui ʻia ʻana o nā lasers semiconductor multi-mode a me ka hiki ke hoʻopaʻa i nā laina laina haiki e hoʻohana ana i ka nui Bragg gratings (VBGS) i ka waena o 2000s. ʻO nā hiʻohiʻona palupalu palupalu nāwaliwali a haiki a puni ka 880nm ua hoʻāla i ka hoihoi nui i nā diodes paʻa paʻa kiʻekiʻe. Hiki i kēia mau laser hana kiʻekiʻe ke pā pololei i ka neodymium ma ke kiʻekiʻe laser kiʻekiʻe o 4F3/2, e hōʻemi ana i nā hemahema quantum a ma laila e hoʻomaikaʻi ai i ke ʻano kumu kumu i ka mana awelika kiʻekiʻe, i kaupalena ʻia e nā lens thermal.

I ka hoʻomaka ʻana o nā makahiki ʻelua o kēia kenekulia, ke ʻike nei mākou i ka piʻi nui ʻana o ka mana i nā lasers 1064nm mode transverse hoʻokahi, a me kā lākou mau laser hoʻololi pinepine e hana ana i nā nalu ʻike a me nā ultraviolet. Hāʻawi ʻia ka lōʻihi o ke ola o ka ikehu kiʻekiʻe o Nd: YAG a me Nd: YVO4, hāʻawi kēia mau hana DPSSL Q-switched i ka ikehu pulse kiʻekiʻe a me ka mana kiʻekiʻe, e hoʻolilo iā lākou i mea kūpono no ka hana ablative a me nā noi micromachining kiʻekiʻe.