Research Grade Stokes Polarimeters

Hinds Instruments’ Stokes Polarimeter Systems offer unparalleled sensitivity for measuring the polarization state of a light beam or source. Using a robust, refined technology, our Dual PEM Stokes Polarimeters quantify all 4 normalized Stokes vectors with a single measurement and no moving parts. The excellent sensitivity, repeatability and straightforward operation of the Dual PEM Stokes Polarimeter platform have made this system invaluable to challenging applications in optical component characterization, astronomy, fiber optic research and manufacturing, and laser quality control.

Research Grade

No moving parts

No imprecise, noise-generating rotators

High speed modulation ( > 40 kHz )

Fast: > 100 normalized Stokes parameter sets per second

Instantaneous, simultaneous complete data capture and display

The light being measured can be from a laser, a fiber, a broadband source or an astronomical body like the sun or a star. The system measures and instantaneously displays the value of each of the normalized Stokes parameters, as well as the position on the Poincare´ sphere. The DOP, DOLP and DOCP are also displayed.

The turnkey system includes an optical module, an electronic module, a complete software package, and a PC with monitor. The optical module, including two photoelastic modulators (PEMs), generates all 4 Stokes parameters with a single measurement. Various standard options are available, including versions for single wavelength or spectroscopic measurements. Systems are available for the visible, NIR, IR and DUV. The software package is designed to calibrate the PEMs for changing wavelengths and a fiber optic input is available. The electronic signals can be processed through either Fourier analysis of waveforms or lock-in amplifiers depending on the requirements of a specific application.

Hardware Features

Dual photoelastic modulator technology

No moving components

Fast and simultaneous measurement of all Stokes parameters

Sturdy mechanical modules

Software Features

Real time display of all normalized Stokes parameters

DOP, DOCP and DOLP

Poincare’ sphere and polarization ellipse

Statistical analysis

Wavelength selection

Measurement points selection and display

Data archiving

Specifications

UV-Vis System: 180 nm – 850 nm

NIR System: 800 nm – 2.5 µm

Mid-IR System: 1.5 µm – 15 µm

NIR Fiber Polarimeter: 1330 nm and 1550 nm

Stokes parameter accuracy: 1%

Stokes parameter sensitivity: 0.0005

Options Available

Fiber Optic Input

Spectroscopic Scanning

Sample Stage

DUV Wavelength Measurements

Fiber Optic Software Modifications

High Sensitivity Demodulation

Stokes Polarimeter Product Bulletin