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
Color glass changed the spectral properties of optical radiation. They therefore allow scientific experiments and industrial applications where that change is necessary. You can combine color glass filters together to change the bandpass or to increase the attenuation. Color glass change the spectral properties of optical radiation. They therefore allow scientific experiments and industrial applications where that change is necessary. You can combine color glass filters together to change the band pass or to increase the attenuation.
Read More
Calcium Fluoride windows and lenses for UV and IR spectrum. Custom made CaF2 windows, CaF2 lenses and wedges according to customer's specifications. CaF2 windows up to 220mm diameter; CaF2 wedges, prisms and CaF2 mirrors; Excimer CaF2 optics, Raman grade CaF2 optics and etc.
Read More
Beamsplitter Penta Prism by adding a wedge and with partial reflective coating on one of its leaning surfaces, Penta Prism can be used as Beamsplitter. Transmission/reflection (T/R) ratio of 50/50, or others for Beamsplitter Penta Prism is available upon request.
Read More
Plano-convex rectangular cylindrical lenses are useful for line imaging or uni-axial magnification in a wide range of applications. These lenses may be combined with other lenses to form complex imaging systems.
Read More
Nd:GdVO4, is a promising material for diode pumped lasers. Similar to the more well-known Nd:YVO4 crystal, Nd:GdVO4 crystal also exhibits high gain, low threshold, and high absorption coefficients at pumping wavelengths. Nd:GdVO4 has the additional advantage over Nd:YVO4 of a much higher thermal conductivity. For CW lasing at 1.06 um and 1.34 um and intracavity doubling with KTP and LBO, the gadolinium vanadate have produced a higher slope efficiency or optical conversion than Nd:YVO4.
Read More
Penta Prisms are used to define right angles in optical systems. Penta Prisms, which provide right handed images,feature a ray deviation of 90°. Penta Prisms are five-sided prisms are unaffected by slight movements. HG OPTRONICS offers a variety of Penta Prisms for optimal performance in the Ultraviolet (UV), Visible, or Infrared (IR) spectrums.
Read More
HGO have advanced coating machines which can meet endusers’different application requirement. We can very high laser induced damaged threshold coating with IAD, EB and IBS coating techniques , also Cr-Au, Aluminum and silver mental coating can also be available in HGO. Customers are very welcome to contact with us for further information.
Read More
IPv6 network supported
