Ho:YAG Ho3+ ions doped into insulating laser crystals have exhibited 14 inter-manifold laser channels, operating in temporal modes from CW to mode-locked . Ho:YAG is commonly used as an efficient means to generate 2.1-μm laser emission from the 5I7- 5I8 transition, for applications such as laser remote sensing, medical surgery, and pumping Mid-IR OPO’s to achieve 3-5micron emission. Direct diode pumped systems,and Tm: Fiber Laser pumped system have demonstrated hi slope efficiencies, some approaching the theoretical limit.
| Ho3+ concentration range | 0.005 – 100 atomic % | 
| Emission Wavelength | 2.01 um | 
| Laser Transition | 5I7 → 5I8 | 
| Flouresence Lifetime | 8.5 ms | 
| Pump Wavelength | 1.9 um | 
| Coefficient of Thermal Expansion | 6.14 x 10-6 K-1 | 
| Thermal Diffusivity | 0.041 cm2 s-2 | 
| Thermal Conductivity | 11.2 W m-1 K-1 | 
| Specific Heat (Cp) | 0.59 J g-1 K-1 | 
| Thermal Shock Resistant | 800 W m-1 | 
| Refractive Index @ 632.8 nm | 1.83 | 
| Melting Point | 1965℃ | 
| Density | 4.56 g cm-3 | 
| MOHS Hardness | 8.25 | 
| Young’s Modulus | 335 Gpa | 
| Crystal Structure | Cubic | 
| Standard Orientation | <111> | 
| Y3+ Site Symmetry | D2 | 
| Lattice Constant | a=12.013 Å | 
| Wavefront distortion | L/8per inch @633nm | 
| Extinction ratio | >28dB | 
| Wavefront distortion | L/8per inch @633nm | 
| Extinction ratio | >28dB | 
| Tolerance:Rods with diameter | (+0、-0.05)mm,( ±0.5) mm | 
| Surface quality | 10/5 Scratch/dig per MIL-O-1380A | 
| Parallelism | <10arc seconds | 
| Perpendicularity | <5arc minutes | 
| Aperture | >90% | 
| Flatness | λ/10@ 633 nm | 
| Tolerance:Rods with diameter | (+0、-0.05)mm,( ±0.5) mm | 
| Surface quality | 10/5 Scratch/dig per MIL-O-1380A | 
| Parallelism | <10arc seconds | 
| Perpendicularity | <5arc minutes | 
| Aperture | >90% | 
| Flatness | λ/10@ 633 nm | 

 
               
               By Gustave from Madrid - 2017.09.29 11:19
 By Gustave from Madrid - 2017.09.29 11:19
               By Sara from Georgia - 2017.12.31 14:53
 By Sara from Georgia - 2017.12.31 14:53
               
             
             
             
             
             
            