Changchun New Industries Optoelectronics Technology Co., Ltd.
   
Lasers, Optics & Photonics

Products
Lasers
Spectrum Analysis
Laser Application Systems
Laser Measurement & Safety
Laser Marking
Laboratory Instruments
Optics & Coatings
Components & Accessories
Fiber-Coupled LEDs
Customized Products
 
Laser Measurement & Safety
Power & Stability Measurement
Wavelength Measurement
Pulse Measurement
Longitudinal Mode Measurement
Coherence Length Measurement
Noise Measurement
Polarization State Measurement
Infrared Laser Display Card
Laser Goggles
 

Customer Service

TTL or Analog Modulation
Fiber Coupling
Coating Service
Laser Marking Service
Complete Solution
 
Contact CNI
Tel: +86-431-85603799 / 89216078
Fax:    +86-431-87020258
E-mail:  sales@cnilaser.com

国内: 0431-87020257 / 89216068

 

Polarization State Measurement——Glan Prism

 
      Laser beam polarization state including linear polarization, elliptical polarization, circular polarization, or arbitrary polarization, which use polarization degree present polarization characteristics. Polarization purity reflected by unwanted polarization contained in the polarization, it is usually referred to extinction ratio which is expressed as a percentage of possession. Both polarization degree and extinction ratio are the constraint quality to describe polarization state.
      Test method, laser beam vertically incident into power meter through Glan prism. Firstly record Glan prism original position, and then record each rotation angle value and power output value, The rotation angle interval can be decided according to required measurement curve accuracy, until rotating 360 degree to complete measurement. Link the points in coordinate system which with angle value as abscissa, energy value as ordinate, the curve characteristics reflect the polarization state.
 

Testing Instrument: Glan Prism

 
Glan prism

Wavelength

200~3500 nm

350~2300 nm

500~4000 nm

Clear aperture

1cm

Damage threshold resistance

>500 MW/cm2

Extinction ratio

<5x10-6

 

Example of  Testing Results

 
Testing results
 

 

Addr: No.888 Jinhu Road High-tech Zone,Changchun 130103, P.R.China

International Tel: +86-431-85603799  Domestic Tel:  0431-87020257  Fax:+86-431-87020258 

 

在线客服
在线客服系统