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Nā huahana

Nd:YVO4 – Nā Lasers Mokuʻāina Paʻa Paʻa Diode

ʻO ka wehewehe pōkole:

Nd:YVO4 ʻo ia kekahi o nā aniani hoʻokipa laser maikaʻi loa i kēia manawa no nā lasers paʻa paʻa-pumped laser diode. Nd:YVO4 he aniani maikaʻi loa no ka mana kiʻekiʻe, kūpaʻa a me ke kumu kūʻai i hoʻomake ʻia i nā lasers solid-state.


Huahana Huahana

Huahana Huahana

Hōʻike huahana

Nd:YVO4 hiki ke hana i nā lasers IR ikaika a paʻa, ʻōmaʻomaʻo, polū me ka hoʻolālā ʻana o Nd:YVO4 a me nā kristal pālua pālua. No nā noi i makemake ʻia ai ka hoʻolālā paʻakikī a me ka hoʻopuka hoʻokahi-longitudinal-mode, hōʻike ʻo Nd:YVO4 i kona mau pono kūikawā ma mua o nā kristal laser i hoʻohana mau ʻia.

Pono o Nd:YVO4

● Haʻahaʻa lasing paepae a me kiʻekiʻe slope pono
● Nui hoʻoulu ʻia emission cross-section ma lasing wavelength
● Kiʻekiʻe absorption ma luna o ka laulā hawewe lōʻihi bandwidth
● Optitically uniaxial a nui birefringence emits polarized laser
● Ke hilinaʻi haʻahaʻa i ka lōʻihi o ka nalu a hoʻomaka i ka puka ʻana o ke ʻano hoʻokahi

Na Waiwai Kumu

Atomic Density ~1.37x1020 ʻātoma/cm2
Hoʻokumu Crystal Zircon Tetragonal, hui ākea D4h, a=b=7.118, c=6.293
ʻO ka mānoanoa 4.22 g/cm2
Mohs Paʻakikī Me he aniani, 4.6 ~ 5
Hoʻonui wela
Coefficient
αa=4.43x10-6/K,αc=11.37x10-6/K
Lae hehee 1810 ± 25 ℃
Nā Loʻihi Hawewe 914nm, 1064 nm, 1342 nm
Hōʻikeʻike Thermal
Coefficient
dna/dT=8.5x10-6/K, dnc/dT=3.0x10-6/K
Hoʻokuʻu ʻia
Māhele Kea
25.0x10-19 cm2 , @1064 nm
ʻōniʻoniʻo
ola ola
90 ms (ma kahi o 50 ms no 2 atm% Nd doped)
@ 808 nm
Hoʻopili ʻana 31.4 knm-1 @ 808 nm
Ka lōʻihi o ka lawe ʻana 0.32 mm @ 808 nm
Nalo Intrinsic He 0.1% kenimika-1 , @1064 nm
Loaʻa i ka Bandwidth 0.96 nm (257 GHz) @ 1064 nm
Laser Polarized
Hoʻokuʻu
like me ke koʻi optic (c-axis)
Diode Pumped
Optical i Optical
Ka pono
> 60%
Sellmeier Equation (no nā kristal YVO4 maʻemaʻe) no2(λ) =3.77834+0.069736/(λ2 - 0.04724) - 0.0108133λ2
  no2(λ) =4.59905+0.110534/(λ2 - 0.04813) - 0.0122676λ2

Nā ʻāpana ʻenehana

Nd dopant noonoo 0.2 ~ 3 atm%
ʻO ka hoʻomanawanui dopant i loko o 10% o ka noonoo
Ka lōʻihi 0.02 ~ 20mm
Hōʻike hoʻouhi AR @ 1064nm, R< 0.1% & HT @ 808nm, T>95%
HR @ 1064nm, R>99.8% & HT@ 808nm, T>9%
HR @ 1064nm, R>99.8%, HR @ 532 nm, R>99% & HT @ 808 nm, T>95%
Kūlana ʻoki ʻia ka ʻaoʻao crystalline (+/-5 ℃)
Ka hoʻomanawanui ʻana +/- 0.1mm (maʻamau), Hiki ke loaʻa ka pololei kiʻekiʻe +/-0.005mm ma ke noi.
ʻO ka hoʻoheheʻe ʻana o ka nalu <λ/8 ma 633nm
Kūlana ʻili ʻOi aku ka maikaʻi ma mua o 20/10 Scratch/Dig no MIL-O-1380A
Hoʻolikelike < 10 arc kekona

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