Co: Spinel Makristasi
Passive Q-swichi kana saturable absorbers inogadzira yakakwira simba laser pulses pasina kushandisa electro-optic Q-swichi, nekudaro ichidzikisa saizi yepasuru uye kubvisa yakakwira voltage magetsi.Co2+:MgAl2O4 chinhu chitsva chakaita kuti passive Q-switching mumalaser anobuda kubva 1.2 kusvika 1.6μm, kunyanya, yeziso-yakachengeteka 1.54μm Er: girazi laser, asi inoshandawo pa1.44μm uye 1.34μm laser wavelengths.Spinel ikristaro yakaoma, yakagadzikana inopenya zvakanaka.Cobalt inotsiva zviri nyore kune magnesium mune Spinel host pasina kudiwa kwekuwedzera muripo wemuripo ions.High absorption cross section (3.5 × 10-19 cm2) inobvumira Q-kuchinja kweEr: girazi laser pasina intracavity inotarisa zvose ne-flash-lamp uye diode laser kupomba.Negligible excited-state absorption inoguma mukusiyana kwereshiyo yeQ-switch, kureva kuti reshiyo yekutanga (chiratidzo chidiki) kusvika pakunyura yakakwira kupfuura gumi.
Features:
• Inokodzera 1540 nm maziso-akachengeteka lasers
• High absorption chikamu
• Negligible excited state absorption
• High optical quality
• Uniformly distributed Co
Applications:
• Ziso-yakachengeteka 1540 nm Er: girazi laser
• 1440 nm laser
• 1340 nm laser
• Ziso-yakachengeteka laser range finder
| Chemical formula | Co2+:MgAl2O4 |
| Crystal chimiro | Cubic |
| Lattice parameters | 8.07Å |
| Density | 3.62 g/cm3 |
| Melting Point | 2105°C |
| Refractive Index | n=1.6948 @1.54 µm |
| Thermal Conductivity /(W · cm-1·K-1@25°C) | 0.033W |
| Chaicho Kupisa/ (J·g-1·K-1) | 1.046 |
| Kuwedzera kweThermal / (10-6/°C@25°C ） | 5.9 |
| Kuoma (Mohs) | 8.2 |
| Extinction Ratio | 25dB |
| Orientation | [100] kana [111] <±0.5° |
| Optical density | 0.1-0.9 |
| Damage Threshold | >500 MW/cm2 |
| Doping concentration yeCo2+ | 0.01-0.3 atm% |
| Absorption coefficient | 0 kusvika 7cm-1 |
| Kushanda wavelength | 1200 - 1600 nm |
| Coatings | AR/AR@1540, R<0.2%;AR/AR@1340, R<0.2% |
| Orientation Tolerance | <0.5° |
| Hukobvu/Diameter Tolerance | ±0.05 mm |
| Surface Flatness | < λ/8@632 nm |
| Wavefront Distortion | < λ/4@632 nm |
| Surface Quality | 10/5 |
| Parallel | 10〞 |
| Perpendicular | 5ˊ |
| Clear Aperture | >90% |
| Chamfer | <0.1×45° |
| Maximum dimensions | Dia(3-15)×(3-50)mm |
