Special Price – Co:Spinel Crystals – Dien

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To meet the customers' over-expected gratification , we have our robust crew to offer our best over-all support which includes marketing, income, coming up with, production, excellent managing, packing, warehousing and logistics for Aggas2 Crystal, Plano-Concave Lenses, Er Yb Cr Glass, The principle of our organization is usually to provide high-quality items, qualified services, and trustworthy communication. Welcome all friends to place trial order for developing a long-term small business relationship.

Special Price – 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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We have been committed to offering easy,time-saving and money-saving one-stop purchasing service of consumer for Special Price – Co:Spinel Crystals – Dien , The product will supply to all over the world, such as: Munich, Ethiopia, Belarus, We will not only continuously introduce technical guidance of experts from both home and abroad, but also develop the new and advanced products constantly to satisfactorily meet the needs of our clients all over the world.

Reasonable price, good attitude of consultation, finally we achieve a win-win situation,a happy cooperation!

By Moira from Lesotho - 2018.11.02 11:11

This company has the idea of "better quality, lower processing costs, prices are more reasonable", so they have competitive product quality and price, that's the main reason we chose to cooperate.

By Carey from Myanmar - 2018.12.14 15:26