Best quality Agse - Co:Spinel Crystals – Dien

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Best quality Agse - 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	5ˊ
Clear Aperture	>90%
Chamfer	<0.1×45°
Maximum dimensions	Dia(3-15)×(3-50)mm

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Dependable good quality and very good credit score standing are our principles, which will help us at a top-ranking position. Adhering towards the tenet of "quality initial, shopper supreme" for Best quality Agse - Co:Spinel Crystals – Dien , The product will supply to all over the world, such as: Lesotho, Latvia, Swiss, Our Company policy is "quality first, to be better and stronger, sustainable development" . Our pursuit goals is "for society, customers, employees, partners and enterprises to seek reasonable benefit". We aspirate to do cooperate with all different the auto parts manufacturers, repair shop, auto peer , then create a beautiful future! Thank you for taking time to browse our website and we would welcome any suggestions you may have that can help us to improve our site.

This company conforms to the market requirement and joins in the market competition by its high quality product, this is an enterprise that have Chinese spirit.

By Linda from Niger - 2018.06.03 10:17

The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!

By Christian from USA - 2017.04.28 15:45