Complaint
Descriptions:
Cr4+:YAG (Y3Al5O12) crystal is ideal for passive Q-switch operation of Nd:YAG and other Nd3+ or Yb3+ doped laser crystals in the wavelength range of 900 nm to 1200 nm. Passive Q-switches or saturable absorbers provide high power laser pulses without electro-optic Q-switches, thereby reducing the package size and eliminating a high voltage power supply. A remarkable feature of Cr4+:YAG is the high damage threshold of >10 J/cm2@1064 nm, 10 ns. Its absorption band extends from 900 nm to 1200 nm and peaks around 1060 nm with a very large absorption cross-section.
Main applications:
1) Passively Q-switched lasers for laser rangefinders, LIDAR, and LIBS systems
2) Laser systems where short pulses are required
Advantages:
1) High chemica stability and reliability
2) Easy to operate
3) Long lifetime and good thermal conductivity
Basic properties of CrYAG
| Chemical Formula | Cr4+:Y3Al5O12 |
| Crystal Structure | Cubic |
| Mohs Scale of Mineral Hardness | 8.5 |
| Melting Point | 1970 °C |
| Density, g/cm3 | 4.55 |
| Coefficient of Thermal Conductivity @ 25°C, W x cm-1x °K-1 | 0.14 |
| Coefficient of Thermal Expansion | 8.2 x 10-6/ ºC<100> |
| Young's Modulus | 7.7x 106<100> |
| Thermal Shock Resistance | 790 Wm-1 |
| Orientation: | <100> or <110> |
| Initial absorption coefficient | 0.1~8.5cm-1@1064nm |
| Initial transmission | 3%~98% |
| Wavefront Distortion: | λ/8per inch @ 632.8 nm |
| Dimension Tolerances: | rods with diameter: +0.0/-0.05 mm , Length: ±0.1 mm |
| Surface Quality: | 20/10 Scratch/Dig MIL-O-1380A |
| Parallelism: | < 10″ |
| Perpendicularity: | < 10′ |
| Clear Aperture: | > 90% |
| Surface Flatness: | < λ/10 @ 632.8 nm |
| Chamfer: | < 0.1 mm @ 45deg. |
| Size | Upon customer request |
| Coating | AR/HR/PR coating upon customer's request |
| Damage Threshold | 750MW-3000MW/CM2 at 1064nm, TEM00, 10ns, 10Hz |
Seeopto Co., Ltd. is located in Pidu District, Chengdu. We aims to provide customers with professional design of laser crystal optical lenses, Coating service and all kinds of optical elements processing include YAG based crystals, YLF-based crystals, YVO4 based crystals, glass based laser Material, bonding crystals, silicon, germanium Infrared and semiconductor materials, LBO, BBO, KTP, ZGP Equal nonlinear material, Ti: Sapphire, CaF2, MgF2.optical sapphire customized components, window and aspheric lenses, powell lens and infrared materials products,etc.
We are also interested in discussing and manufacturing new material combinations and structural geometries. Our goal is to provide high-quality composite materials that can provide solutions to your system needs, so we encourage all design submissions. Please contact us for more information and technical support.
We can not only provide kinds of optical components, but also can make various types of optical coating such us Anti Reflection (AR) coating, High-Reflecting coating, Partial Reflection coating and Polarization Beamsplitter coating etc at single wavelength or broadband wavelength. Which can improve the transmission, high reflection. In addition such as Au, Si, Al, Ti metal coatings also is available.
Application of our items are very extensive and involves in mailitary project, aerospace, industry, scientific, medical instrument, photoelectric device, optical communication and mechanical equipment and so on. In the meantime we also cooperate with internal companies, we offer optics design and OEM service!
We constantly provide our clients with′ Quality products, excellent service, competitive prices and prompt delivery′ , sincerely welcome domestic and foreign customers to establish cooperation with us, creating a bright future in optical field!
What can we do for you ?
Seeopto Co., Ltd provide professional design of laser crystal optical lenses, Coating service and all kinds of optical elements processing We are also interested in discussing and manufacturing new material combinations and structural geometries.
