Polarizer Principles
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Key Features
The controller of the Polarimeter PMI-2000 is integrated into the optical head. Temperature control and Stokes vector calculation are autonomously completed server-side in the Controller. This reduces the data volume of USB calls from PC to Controller.
The Stokes parameters comprise a four-component vector that completely characterizes the polarization of a light beam. The components of the Stokes vector are simple combinations of the intensity outputs from linear polarizers or circular polarizers.
The PolarVIEW software is a user-friendly interface which displays polarization data and allows the user to perform various operations:
PMI-2000 SPECIFICATIONS |
|
Wavelength Range |
450 – 1100 nm |
Absolute Degree of Polarization Accuracy |
≤ 1 % |
Measurable State of Polarization |
Entire Poincaré Sphere |
Measurement Frequency |
10 Hz |
Azimuth Accuracy |
± 0.54° |
Ellipticity Accuracy |
± 0.008° |
Standard Deviation for Ellipticity |
< 0.0008 (no averaging) |
Standard Deviation for Angle of Linear States |
< 0.011° (no averaging) |
Standard Deviation for S1, S2 of Linear States |
< 0.0004 (no averaging) |
Standard Deviation for S3 |
< 0.0005 (no averaging) |
Warm-up Time for Rated Accuracy |
15 minutes for 20 ˚C room temperature |
Minimum Optical Power to maintain accuracy* |
10 µW |
Resolution of Stokes vector components |
0.001 |
Re-calibration Process |
3 minutes, performed as needed with Eigenstate Set |
Input Aperture |
2 mm diameter, knife edge |
Input Fiber Connector |
Optional, 11 mm diameter |
Fiber Coupling Adaptor |
Optional |
Maximum Operating Temperature |
35 ˚C |
Input Power Supply |
12 V, 2 A |
Power Supply Ratings |
Included 5 plugs for different regions |
Optical Head Dimensions |
55.88 mm (W) x 76.20 mm (H) x 69.34 mm (L) |
Command and Control Interface |
USB 2.0 Micro A |
These specifications describe performance at 23 ± 3 °C ambient temperature.
*sensitivity can be increased to 1 mW by special request.
Eigenstate Calibration Set is available separately.
PMI-2000 ORDERING INFORMATION | ||
Wavelength Range | Version | Part Number |
450 – 1100 (nm) | Visible | PMI – VIS |
900 – 1700 (nm) | Near Infrared | PMI – NIR |
STANDARD DEVIATIONS OF CALIBRATION STATE POLARIZATIONS | |||||
Stokes vector Rate (Hz) | S1 | S2 | S3 | Ellipticity | Orientation (degrees) |
16.1 | 0.00038 | 0.00021 | 0.00042 | 0.00079 | 0.01077 |
20.8 | 0.00062 | 0.00057 | 0.00080 | 0.00055 | 0.01799 |
23.8 | 0.00053 | 0.00053 | 0.00092 | 0.00069 | 0.01520 |
26.6 | 0.00032 | 0.00028 | 0.00115 | 0.00057 | 0.00924 |
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