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pk10开奖记录 Attenuators

CASTECH provides the attenuator can be classified into two types: wave plate modulation and electro-optic modulation. Wave plate modulation is to control the ratio of P and s light through polarizer by controlling the rotation angle of 1/2 wave plate. This kind of product has compact structure and strong adaptability. The electro-optic modulation Attenuator 's maximum speed of the power regulation can reach the nanoseconds, also it can be used as high speed light switches. The polarizer of these two products can choose the polarization splitter prism or Brewster window. In the meanwhile, there has the electric and manual control schemes can be selected. Users can choose the appropriate product type according to the use requirements. The product can also be matched with easy-to-disassemble optical traps for selective use by customers.


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ProductIntroduction:


     Opticalattenuator is an optical devicewhich can be used in continuously change the output power of laser. The device consists of a waveplate (or an electro-optical crystal) and a polarizer. The polarization of incident lightis modulated by wave plate (or an electro-optical crystal) and then incident onthe polarizer. The polarizer will divide the incident light into two beams, toaccomplish the target of changing the transmitted light power which is bychanging the ratio of the two beams. Optical attenuators are widely used invarious fields such as the precision laser processing, laser detection, sensingand others. They alsohave unique advantages in ultra-fast and ultra-short pulse laser systems.

       CASTECH provides the attenuator can be classifiedinto two types: wave plate modulation and electro-optic modulation. Waveplate modulation is to control the ratioof P and s light through polarizer by controlling the rotation angle of 1/2wave plate. This kind of product has compact structure and strong adaptability.The electro-optic modulationAttenuator 's maximum speed of the power regulation can reach the nanoseconds,also it can be used as high speed light switches. The polarizer of these twoproducts can choose the polarization splitter prism or Brewster window.Inthemeanwhile, therehastheelectric and manual control schemescan be selected. Users can choose theappropriate product type according to the use requirements. The product canalso be matched with easy-to-disassemble optical traps for selective use bycustomers.



Polarizer  type

PBS

Brewster window

Advantage

High extinction ratio

P-light and S-light are perpendicular to  each other

Large  aperture

High  Damage Threshold*

Disadvantage

relatively  low Damage Threshold*

Limited  aperture

P-light and S-light have a certain  angle



Applications:

  ◆Laser Industrial Processing

  ◆Laser Sensing System

  ◆Ultrafast Laser System


Specifications:



Name

Optical attenuator

Type

Optical  (half-wave plate )

Wavelength  (nm)

1550,1064,1030,800,532,355,343,…

Damage  Threshold* (10ns 10Hz@1064)

30J/cm² (Brewster  polarizer) or 10J/cm² (PBS)

Average  power

Up  to 5000W (Brewster polarizer ) / 500W (PBS)

Extinction  Ratio(Tp  : Ts)

1000  : 1

Attenuation  range

0.3%-99%

Control  mode

Manual or  Automatic

Polarizer

Brewster  window or  PBS

Storage  temperature

10℃50℃

Storage  humidity

<50%rh< span="">



Name

Optical attenuator

Type

Electro-optic  (crystal)

Wavelength  (nm)

1550,1064,1030,800,532,355,343,…

Damage  Threshold* (10ns 10Hz@1064)

20J/cm²  (Brewster polarizer)  or 10J/cm² (PBS)

Average  power

Up  to 1000W (Brewster polarizer ) / 500W (PBS)

Extinction  Ratio(Tp  : Ts)

1000  : 1

Attenuation  range

0.3%-98%

Control  mode

Automatic

Polarizer

Brewster  window or  PBS

Operating Temperature

10℃35℃

Storage  humidity

<50%rh< span="">



*Customized (wavelength, dimension,
power handling,etc.) are available.

*CASTECHprovides the Product specification for specific models, please contact ourcompany for more details.



Product  number

Type

(t)

Control

(c)

Polarize

(b)

Aperture

(a)

Power

(p)

Wavelength

(λ)

Housing

(h)

COA-tc-B-a-p-λ-h

O

(Optical)

E

(Electroptical)

A

(Automatic)

M

(Manual)

B

(Brewster)

5,10,20,40mm,..

≤10000W

532,800,1030,1064nm,...

P01, P02,...

COA-tc-P-a-p-λ-h

P

(PBS)

5,10,12,25.4mm,..

≤200W

P04,...


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