KTP - Kuwirikiza kawiri kwa Nd: yag Lasers Ndi ma Laser ena a Nd-doped
Mafotokozedwe Akatundu
KTP ndiye chinthu chomwe chimagwiritsidwa ntchito kwambiri pakuwirikiza kawiri kwa ma lasers a Nd:YAG ndi ma lasers ena a Nd-doped, makamaka pamagetsi otsika kapena apakatikati.
Ubwino wake
● Kutembenuza kwafupipafupi (1064nm SHG kutembenuza bwino ndi pafupifupi 80%)
● Makanema akuluakulu owoneka bwino (kuwirikiza ka 15 kuposa a KDP)
● Bandiwidth yotakata ya angular ndi ngodya yaing'ono yoyenda
● Kutentha kwakukulu ndi mawonekedwe a bandwidth
● Kutentha kwapamwamba (kuwirikiza kawiri kuposa BNN crystal)
● Zopanda chinyezi
● Kutsika kocheperako kosiyana
● Kuwala kowala kwambiri
● Palibe kuwola pansi pa 900°C
● Wokhazikika pamakina
● Mtengo wotsika poyerekeza ndi BBO ndi LBO
Mapulogalamu
● Frequency Doubling (SHG) ya Nd-doped Lasers for Green/Red Output
● Frequency Mixing (SFM) ya Nd Laser ndi Diode Laser ya Blue Output
● Parametric Sources (OPG, OPA ndi OPO) ya 0.6mm-4.5mm Tunable Output
● Electrical Optical(EO) Modulators, Optical Switches, ndi Directional Couplers
● Optical Waveguides for Integrated NLO ndi EO Devices
Kutembenuza pafupipafupi
KTP idayambitsidwa koyamba ngati NLO crystal ya Nd doped laser system yokhala ndi kutembenuka kwakukulu. Pazifukwa zina, kusinthika kunanenedwa kwa 80%, komwe kumasiya makhiristo ena a NLO kumbuyo.
Posachedwapa, ndi chitukuko cha laser diode, KTP chimagwiritsidwa ntchito ngati zipangizo SHG mu diode pumped Nd: YVO4 makina olimba laser linanena bungwe wobiriwira laser, komanso kupanga laser dongosolo kwambiri yaying'ono.
KTP Ya OPA, Mapulogalamu a OPO
Kuphatikiza pakugwiritsa ntchito kwambiri ngati chipangizo chowirikiza kawiri pamachitidwe a laser a Nd-doped kwa Green/Red linanena bungwe, KTP ilinso imodzi mwamakristalo ofunikira kwambiri pamagwero a parametric kuti atulutsidwe kuchokera pakuwoneka (600nm) mpaka pakati pa IR (4500nm) chifukwa cha kutchuka kwa magwero ake opopera, chofunikira komanso chachiwiri chogwirizana ndi Nd.
Chimodzi mwazofunikira kwambiri ndi gawo losagwirizana ndi gawo (NCPM) KTP OPO/OPA yomwe imapopedwa ndi ma lasers osinthika kuti apeze kusinthika kwakukulu.KTP OPO imapangitsa kuti pakhale kukhazikika kosalekeza kwa femto-second pulse ya 108 Hz kubwereza kwa 108 Hz ndi milli-watt pafupifupi milingo yamagetsi yotulutsa muzizindikiro zonse ndi id.
Popopedwa ndi ma lasers a Nd-doped, KTP OPO yapeza kusinthika kopitilira 66% pakusintha kuchokera ku 1060nm kupita ku 2120nm.
Electro-Optical Modulators
KTP kristalo itha kugwiritsidwa ntchito ngati ma electro-optical modulators. Kuti mudziwe zambiri, lemberani akatswiri athu ogulitsa.
Basic Properties
| Kapangidwe ka kristalo | Orthorhombic |
| Malo osungunuka | 1172 ° C |
| Curie Point | 936 ° C |
| Lattice magawo | a=6.404Å, b=10.615Å, c=12.814Å, Z=8 |
| Kutentha kwa kuwonongeka | ~ 1150°C |
| Kusintha kutentha | 936 ° C |
| Mohs kuuma | »5 |
| Kuchulukana | 2.945g/cm3 |
| Mtundu | wopanda mtundu |
| Hygroscopic Susceptibility | No |
| Kutentha kwenikweni | 0.1737 cal/g.°C |
| Thermal conductivity | 0.13 W/cm/°C |
| Magetsi conductivity | 3.5x10-8 s/cm (c-axis, 22°C, 1KHz) |
| Ma coefficients owonjezera kutentha | a1 = 11 x 10-6 °C-1 |
| a2 = 9 x 10-6 °C-1 | |
| a3 = 0,6 x 10-6 °C-1 | |
| Thermal conductivity coefficients | k1 = 2.0 x 10-2 W/cm °C |
| k2 = 3.0 x 10-2 W/cm °C | |
| k3 = 3.3 x 10-2 W/cm °C | |
| Mtundu wotumizira | 350nm ~ 4500nm |
| Gawo Lofananitsa Range | 984nm ~ 3400nm |
| Mayamwidwe coefficients | <1%/cm @1064nm ndi 532nm |
| Nonlinear Properties | |
| Gawo lofananira | 497nm - 3300nm |
| Nonlinear coefficients (@ 10-64nm) | d31=2.54pm/V, d31=4.35pm/V, d31=16.9pm/V d24=3.64pm/V, d15=1.91pm/V pa 1.064 mm |
| Ma coefficients owoneka bwino a nonlinear | deff(II)≈ (d24 - d15)sin2qsin2j - (d15sin2j + d24cos2j)sinq |
Mtundu II SHG wa 1064nm Laser
| Gawo lofananira ngodya | q=90°, f=23.2° |
| Ma coefficients owoneka bwino a nonlinear | deff » 8.3 x d36(KDP) |
| Kuvomereza kwa angular | Dθ= 75 mrad Dφ= 18 mrad |
| Kuvomereza kutentha | 25°C.cm |
| Kuvomereza kwa Spectral | 5.6 Åcm |
| Walk-off angle | 1 mdwa |
| Chiwopsezo cha kuwonongeka kwa Optical | 1.5-2.0MW/cm2 |
Magawo aukadaulo
| Dimension | 1x1x0.05 - 30x30x40 mm |
| Mtundu wofananira ndi gawo | Mtundu II, θ=90°; φ=ngodya yofananira ndi gawo |
| Chophimba Chofanana | S1&S2: AR @1064nm R<0.1%; AR @ 532nm, R<0.25%. b) S1: HR @1064nm, R> 99,8%; HT @808nm, T>5% S2: AR @1064nm, R<0.1%; AR @532nm, R<0.25% Zopaka mwamakonda kupezeka pa pempho kasitomala. |
| Kulekerera kwa ngodya | 6' Δθ< ± 0.5 °; Δφ< ± 0.5° |
| Dimension tolerance | ± 0.02 - 0.1 mm (W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/-0.1mm) pa mndandanda wa NKC |
| Kusalala | λ/8 @ 633nm |
| Scratch/Dig kodi | 10/5 Scratch/kukumba pa MIL-O-13830A |
| Kufanana | <10' kuposa masekondi a 10 arc pamndandanda wa NKC |
| Perpendicularity | 5' Mphindi 5 za arc za mndandanda wa NKC |
| Kusokonezeka kwa Wavefront | zosakwana λ/8 @ 633nm |
| Bowo loyera | 90% m'chigawo chapakati |
| Kutentha kwa ntchito | 25°C -80°C |
| Homogeneity | dn ~ 10-6 / cm |
