what are you looking for?
Co2+:MgAl2O4 Cospinel is a relatively new material for passive Q-switching in lasers emitting from 1.2 to 1.6 μm, in particular, for eye-safe 1.54 μm Er:glass laser, but also works at 1.44 μm and 1.34 μm wavelengths. Spinel is a hard, stable crystal that polishes well. Cobalt substitutes readily for magnesium in the Spinel host without the need for additional charge compensation ions. High absorption cross section (3.5×10-19 cm2) permits Q-switching of Er:glass laser without intracavity focusing both with flash-lamp and diode-laser pumping. Negligible excited-state absorption results in high contrast of Q-switch, i.e. the ratio of initial (small signal) to saturated absorption is higher than 10.
Product Origin:
ChinaShipping Port:
Fuzhou, ChinaLead Time:
3-4weeks
Descriptions:
Co2+:MgAl2O4 Cobalt-doped magnesium aluminate spinel is a relatively new material for passive Q-switching specially for eye-safe 1.54 μm Er:glass laser, but also works at 1.44 μm and 1.34 μm wavelengths.
Main applications:
1) Passive Q-switch for Radar and Ranging Er:Glass lasers @1,35µm
2) Passive Q-switch for Medical lasers @1,500 µm
Advantages:
1) Rare excited absorption
2) High constant of Q-switch
3) High absorption section
4) Long excited lifetime
5) Evenly distributed cobalt
6) Wide absorption band
Basic properties of Cospinel
|
Chemical formula |
Co2+:MgAl2O4 |
|
Crystal structure |
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 |
|
Thermal Expansion /（10-6 /°C@25°C ） |
1.046 |
|
Specific Heat/ (J·g-1·K-1) |
5.9 |
|
Hardness (Mohs) |
8.2 |
|
Extinction Ratio |
25dB |
|
Density |
1.6-1.75 |
HGO offers Cospinel specifications:
|
Orientation: |
<100> or <111> |
|
Initial absorption coefficient |
0~7cm-1@1064nm |
|
Initial transmission |
50%~99% |
|
Wavefront Distortion: |
λ/8per inch @ 632.8 nm |
|
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/CM2 at 1064nm, TEM00, 10ns, 10Hz |
|
Quality Warranty Period |
One year under proper use |
Why Choose HGO ?
HG OPTRONICS.,INC. supplies very high quality of Co2+:MgAl2O4 Cobalt-doped magnesium aluminate spinel.The use of high quality starting materials for crystal growth, boule interferometry, and precise measurement of initial transmission and absorption using transmission spectroscopy and ZYGO measurements, assures that each crystal will comply with customer’s specification and perform well in laser system.
Tolerance of initial transmission can be well controlled within as high precision as 0.5% which could be very essential to some delicate laser systems. Besides, based on HGO’s advanced bonding technology, high quality of optical bonding kits between Er:Yb:glass and cospinel q-switch can also be supplied.
HGO could also provide high quality polishing and apply high laser induced damage threshold coating for the switch.and also for other related cavity lens and mirrors for the eye safe lasers systems.
Leave A Message
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.
Read More
Double Concave Lenses are used in beam expansion, image reduction, or light projection applications. These lenses are also ideal for expanding the focal length of an optical system. Double Concave Lenses, which have two concave surfaces, are Optical Lenses with negative focal lengths. HG OPTRONICS offers Double Concave lenses with a variety of coating options.
Read More
TGG is an excellent magneto-optical crystal used in various Faraday devices(Polarizer and Isolator) in the range of 400nm-1100nm, excluding 475-500nm.
Read More
Diffusion bonded crystals consist of one laser crystal and one or two undoped material. They are combined by optical contact method and further bonded under high temperature. Diffusion Bonded Crystal helps to decrease thermal lens effect considerably of laser crystals, provides integral components to make compact lasers. HGO are able to supply various standard assembly and special customized bonding crystals.These diffusion bonded composite crystals have different wedge structures, Brewster angles, etc. It is used to effectively reduce the thermal effect of solid-state high-power lasers.
Read More
Laser Lenses are used to focus collimated light from laser beams in a variety of laser applications. Laser Lenses include a range of lens types including HGQ Lenses, Cylinder Lenses, or Laser Generator Lenses. Laser Lenseare designed to focus light in several different ways depending on the lens type, such as focusing down to a point,a line, or a ring. Many different lens types are available in a range of wavelengths.
Read More
Achromatic Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. Achromatic Lenses, which are often designed by either cementing two elements together or mounting the two elements in a housing, create smaller spot sizes than comparable singlet lenses.
Read More
Prisms are transparent optical devices which refract or reflect light. They have manifold applications in laser technology.
Read More
A band pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range, and it’s used to selectively transmit a portion of the spectrum while rejecting all other wavelengths.
Read More
IPv6 network supported
