The corporation upholds the philosophy of "Be No.1 in high quality, be rooted on credit rating and trustworthiness for growth", will continue to serve outdated and new consumers from home and overseas whole-heatedly for Ktp, Eo Q-Switchs, Er Glass, Our hugely specialized process eliminates the component failure and offers our consumers unvarying high quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
Factory Cheap Hot Passive Q Switch - Ce: YAG Crystals – Dien Detail:
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.
Basic Properties
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 |
Technical Parameters
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 |
Absorption coefficient

Product detail pictures:
Related Product Guide:
Bear "Customer 1st, Good quality first" in mind, we work closely with our prospects and supply them with efficient and professional services for Factory Cheap Hot Passive Q Switch - Ce: YAG Crystals – Dien , The product will supply to all over the world, such as: Finland, Chile, Czech republic, Our market share of our products has greatly increased yearly. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future. We are looking forward to your inquiry and order.