Manufacturer for Yag Q Switch - Co:Spinel Crystals – Dien


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Manufacturer for Yag Q Switch - 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:

Manufacturer for Yag Q Switch - Co:Spinel Crystals – Dien detail pictures

Manufacturer for Yag Q Switch - Co:Spinel Crystals – Dien detail pictures


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Assume full accountability to satisfy all demands of our consumers; reach ongoing advancements by endorsing the expansion of our purchasers; come to be the final permanent cooperative partner of clients and maximize the interests of clientele for Manufacturer for Yag Q Switch - Co:Spinel Crystals – Dien , The product will supply to all over the world, such as: Latvia, St. Petersburg, Qatar, We aim to build a famous brand which can influence a certain group of people and light up the whole world. We want our staff to realize self-reliance, then achieve financial freedom, lastly obtain time and spiritual freedom. We do not focus on how much fortune we can make, instead we aim to obtain high reputation and be recognized for our products. As a result, our happiness comes from our clients satisfaction rather than how much money we earn. Ours team will do best for you always.
Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
5 Stars By Poppy from USA - 2017.08.21 14:13
The quality of the products is very good, especially in the details, can be seen that the company work actively to satisfy customer's interest, a nice supplier.
5 Stars By Hellyngton Sato from Turkmenistan - 2018.09.21 11:44