Excellent quality Laser Crystal - Co:Spinel Crystals – Dien


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Excellent quality Laser Crystal - Co:Spinel Crystals – Dien Detail:

Passive Q-switches or saturable absorbers generate high power laser pulses without the use of electro-optic Q-switches, thereby reducing the package size and eliminating a high voltage power supply. Co2+:MgAl2O4 is a relatively new material for passive Q-switching in lasers emitting from 1.2 to 1.6μm, in particular, for eye-safe 1.54μm Er:glass laser, but also works at 1.44μm and 1.34μm laser 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 ratio of Q-switch, i.e. the ratio of initial (small signal) to saturated absorption is higher than 10.


Features

•  Suitable for 1540 nm eye-safe lasers
•  High absorption section
•  Negligible excited state absorption
•  High optical quality
•  Uniformly distributed Co


Applications

•  Eye-safe 1540 nm Er:glass laser
•  1440 nm laser
•  1340 nm laser
•  Eye-safe laser range finder


Basic Properties

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
Specific Heat/ (J·g-1·K-1) 1.046
Thermal Expansion /(10-6 /°C@25°C ) 5.9
Hardness (Mohs) 8.2
Extinction Ratio 25dB
Orientation [100] or [111] < ±0.5°
Optical density 0.1-0.9
Damage Threshold >500 MW/cm2
Doping concentration of Co2+ 0.01-0.3 atm%
Absorption coefficient 0 ~ 7 cm-1
Working wavelength 1200 – 1600 nm
Coatings AR/AR@1540,R<0.2%; AR/AR@1340,R<0.2%


Technical Parameters

Orientation Tolerence < 0.5°
Thickness/Diameter Tolerance ±0.05 mm
Surface Flatness <λ/8@632 nm
Wavefront Distortion <λ/4@632 nm
Surface Quality 10/5
Parallel 10〞
Perpendicular
Clear Aperture >90%
Chamfer <0.1×45°
Maximum dimensions Dia(3-15)×(3-50)mm

Product detail pictures:

Excellent quality Laser Crystal - Co:Spinel Crystals – Dien detail pictures

Excellent quality Laser Crystal - Co:Spinel Crystals – Dien detail pictures


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To create more benefit for buyers is our business philosophy; shopper growing is our working chase for Excellent quality Laser Crystal - Co:Spinel Crystals – Dien , The product will supply to all over the world, such as: Bhutan, Panama, Latvia, Our company now has many department, and there have more than 20 employees in our company. We set up sales shop, show room, and product warehouse. In the meantime, we registered our own brand. We have tightened inspection for quality of product.
Goods just received, we are very satisfied, a very good supplier, hope to make persistent efforts to do better.
5 Stars By Bruno Cabrera from Oslo - 2018.11.02 11:11
The company's products can meet our diverse needs, and the price is cheap, the most important is that the quality is also very nice.
5 Stars By April from Paraguay - 2017.07.28 15:46