I-KTP - Imvamisa yokuphindaphinda kabili kwe-Nd:yag Lasers kanye namanye ama-Nd-doped Lasers
Incazelo Yomkhiqizo
I-KTP iyinto esetshenziswa kakhulu ukuphindaphinda kabili ama-laser e-Nd:YAG namanye ama-lasers e-Nd-doped, ikakhulukazi lapho kubamba khona amandla aphansi noma amaphakathi.
Izinzuzo
● Ukuguqulwa kwefrikhwensi okusebenzayo (1064nm SHG ukuguqulwa okusebenzayo kucishe kube ngu-80%)
● Ama-coefficients amakhulu angaqondile (okuphindwe ka-15 kune-KDP)
● Umkhawulokudonsa obanzi we-angular kanye ne-engeli encane yokuhamba
● Izinga lokushisa elibanzi kanye nomkhawulokudonsa we-spectral
● I-thermal conductivity ephezulu (izikhathi ezingu-2 kune-BNN crystal)
● Angenawo umswakama
● I-gradient encane yokungafani
● Indawo ecwebezelayo ecwebe kakhulu
● Akukho ukubola ngaphansi kuka-900°C
● Izinzile ngomshini
● Izindleko eziphansi uma ziqhathaniswa ne-BBO ne-LBO
Izinhlelo zokusebenza
● I-Frequency Doubling (SHG) ye-Nd-doped Lasers for Green/Red Output
● I-Frequency Mixing (SFM) ye-Nd Laser ne-Diode Laser ye-Blue Output
● Imithombo Yepharamitha (i-OPG, i-OPA ne-OPO) ka-0.6mm-4.5mm Okukhiphayo Okusebenzisekayo
● I-Electrical Optical(EO) Modulators, Optical Switches, kanye nama-Directional Couplers
● Optical Waveguides for Integrated NLO kanye EO Amadivayisi
Ukuguqulwa Kwemvamisa
I-KTP yethulwa okokuqala njengekristalu ye-NLO yezinhlelo ze-laser ze-Nd ezisebenza kahle kakhulu. Ngaphansi kwezimo ezithile, ukusebenza kahle kokuguqulwa kwabikwa ku-80%, okushiya amanye amakristalu e-NLO ngemuva kakhulu.
Muva nje, ngokuthuthukiswa kwama-laser diode, i-KTP isetshenziswa kabanzi njengamadivayisi e-SHG kumasistimu e-laser ampontshwa e-diode Nd:YVO4 ukuze akhiphe i-laser eluhlaza, kanye nokwenza uhlelo lwe-laser luhlangane kakhulu.
I-KTP Ye-OPA, Izicelo ze-OPO
Ngaphezu kokusetshenziswa kwayo okubanzi njengedivayisi ephindaphindwayo kabili kumasistimu we-laser e-Nd-doped wokukhipha Okuhlaza/Okubomvu, i-KTP iphinde ibe ngenye yamakristalu abaluleke kakhulu emithonjeni yepharamitha ukuze kukhishwe okushintshwayo kusukela kokubonakalayo (600nm) kuya maphakathi ne-IR (4500nm) ngenxa yokuduma kwemithombo yayo empontshiwe, i-harmonic eyisisekelo neyesibili yamalaser e-Nd:YAG noma e-Nd:YLF.
Olunye lwezinhlelo eziwusizo kakhulu yi-non-critical phase-matched (NCPM) KTP OPO/OPA empontshwa ama-laser ashintshwayo ukuze kutholwe ukusebenza kahle kokuguqulwa okuphezulu.I-KTP OPO iphumela ekuphumeni okuzinzile kwe-femto-second pulse yezinga lokuphindaphinda elingu-108 Hz. kanye namazinga wamandla esilinganiso se-milli-watt kukho kokubili isignali nokuphumayo kokungenzi lutho.
Igxishwe ama-laser e-Nd-doped, i-KTP OPO ithole ukuphumelela kokuguqulwa okungaphezulu kuka-66% wokuguqulwa okuphansi ukusuka ku-1060nm kuya ku-2120nm.
I-Electro-Optical Modulators
Ikristalu ye-KTP ingasetshenziswa njengama-modulators e-electro-optical. Ukuze uthole ulwazi olwengeziwe, sicela uthinte onjiniyela bethu bokuthengisa.
Izakhiwo Eziyisisekelo
| Isakhiwo sekristalu | I-Orthorhombic |
| Iphoyinti lokuncibilika | 1172°C |
| I-Curie Point | 936°C |
| Imingcele ye-Lattice | a=6.404Å, b=10.615Å, c=12.814Å, Z=8 |
| Izinga lokushisa lokubola | ~ 1150°C |
| Izinga lokushisa lokushintsha | 936°C |
| Mohs ubulukhuni | »5 |
| Ukuminyana | 2.945 g/cm3 |
| Umbala | engenambala |
| I-Hygroscopic Susceptibility | No |
| Ukushisa okuqondile | 0.1737 cal/g.°C |
| I-Thermal conductivity | 0.13 W/cm/°C |
| I-conductivity kagesi | 3.5x10-8 s/cm (c-axis, 22°C, 1KHz) |
| Ama-coefficients okunweba okushisayo | a1 = 11 x 10-6 °C-1 |
| a2 = 9 x 10-6 °C-1 | |
| a3 = 0.6 x 10-6 °C-1 | |
| I-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 | |
| Ububanzi bokudlulisa | 350nm ~ 4500nm |
| Ibanga Lokufanisa Isigaba | 984nm ~ 3400nm |
| Ama-coefficients wokumuncwa | a <1%/cm @1064nm kanye ne-532nm |
| Izakhiwo Ezingaqondile | |
| Ibanga lokufanisa isigaba | 497nm – 3300 nm |
| Ama-coefficients angaqondile (@ 10-64nm) | d31=2.54pm/V, d31=4.35pm/V, d31=16.9pm/V d24=3.64pm/V, d15=1.91pm/V ngo-1.064 mm |
| Ama-coefficients asebenzayo we-optical nonlinear | deff(II)≈ (d24 - d15)sin2qsin2j - (d15sin2j + d24cos2j)sinq |
Uhlobo II SHG ye-1064nm Laser
| I-engeli yokufanisa isigaba | q=90°, f=23.2° |
| Ama-coefficients asebenzayo we-optical nonlinear | deff » 8.3 x d36(KDP) |
| Ukwamukelwa kwe-angular | Dθ= 75 mrad Dφ= 18 mrad |
| Ukwamukelwa kwezinga lokushisa | 25°C.cm |
| Ukwamukelwa kwe-Spectral | 5.6 Åcm |
| I-walk-off angle | 1 mrad |
| Umkhawulo womonakalo obonakalayo | 1.5-2.0MW/cm2 |
Imingcele Yezobuchwepheshe
| Ubukhulu | 1x1x0.05 - 30x30x40 mm |
| Uhlobo lokufanisa isigaba | Uhlobo II, θ=90°; φ=i-engeli yokufanisa isigaba |
| Ukugqoka Okujwayelekile | I-S1&S2: AR @1064nm R<0.1%; I-AR @ 532nm, R<0.25%. b) S1: HR @1064nm, R>99.8%; HT @808nm, T>5% S2: AR @1064nm, R<0.1%; I-AR @532nm, R<0.25% I-coating eyenziwe ngokwezifiso iyatholakala ngesicelo sekhasimende. |
| Ukubekezelelana kwe-engeli | 6' Δθ< ± 0.5°; Δφ< ±0.5° |
| Ukubekezelelana kobukhulu | ±0.02 - 0.1 mm (W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/-0.1mm) ochungechungeni lwe-NKC |
| Ukucaba | λ/8 @ 633nm |
| Scratch/Dig ikhodi | 10/5 Scratch/dig nge-MIL-O-13830A ngayinye |
| Ukufana | <10' ingcono kunemizuzwana eyi-arc eyi-10 yochungechunge lwe-NKC |
| I-Perpendicularity | 5' 5 arc imizuzu yochungechunge lwe-NKC |
| Ukuhlanekezela kwe-Wavefront | ngaphansi kuka-λ/8 @ 633nm |
| Imbobo ecacile | 90% indawo emaphakathi |
| Izinga lokushisa lokusebenza | 25°C - 80°C |
| I-Homogeneity | dn ~ 10-6/cm |
