Polarization Analyzer

Polarization Analyzer

Idealphotonics’ has designed a high-precision polarization analyzer for characterizing the polarization state of continuous-wave lasers. The analyzer is based on a rotating achromatic wave plate and a polarizer. The waveplate is rotated by a motor, while a photodiode (PD) collects one cycle of the signal. From this measurement, the four Stokes parameters (S0, S1, S2, S3) of the input light can be determined, enabling calculation of the polarization azimuth, ellipticity, and other related polarization parameters.

Product features：Compact Design and Stability；Full Software Support；High Accuracy；Excellent Compatibility

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Application area：Research and Development and Fundamental Research | Industry and Quality Control | National Defense and Remote Sensing

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Main parameters
General Parameters
Optional Configurations
Downloads

Main parameters

Core parameters

Wavelength Range

VIS: 400~700nm / NIR: 650~1100nm / IR: 900~1700nm

Dimension Drawing

General Parameters

Features

Wavelength Coverage: The IP-PAX series offers three models—VIS, NIR, and IR—covering a wavelength range from 400 nm to 1700 nm, allowing users to select the appropriate model according to their needs.

Compact Design and Stability: Features a compact design for easy integration and reliable operation.

Full Software Support: Includes control software that displays Stokes parameters, the Poincaré sphere, and other polarization-related information. Supports Degree of Polarization (DOP) measurement and Extinction Ratio (ER) testing.

High Accuracy:Provides precise measurement of polarization azimuth and ellipticity.

Excellent Compatibility: Dual-threaded structure (external SM1, internal SM05) enables both cage/mount integration and direct free-space light input.

Technical Specifications and Test Data

Performance Parameters	Typical Values	Unit
Housing (L×W×H)	79.5×65×75	mm
Power Supply	DC 12V/2A	/
Wavelength Range	VIS: 400~700	nm
	NIR: 650~1100	nm
	IR: 900~1700	nm
Optical Power Input Range	10 µW~10 mW	/
Free-Space Input Beam Diameter	Φ3 (Φ2 for IR)	mm
Default Sampling Rate	15 Hz (FFT=2048/cycle)	/
Maximum Sampling Rate	30 Hz (FFT=2048/cycle)	/
Measurable State of Polarization (SOP)	Entire Poincaré Sphere	/
Azimuth Angle Accuracy	±0.5	°
Ellipticity Accuracy	±0.5	°
Degree of Polarization (DOP) Accuracy	±5%	/
Bottom Thread	M4 thread	/
Front Thread	External SM1, Internal SM05	/
Temperature range	5~30	°C
Operating Humidity	<90% (non-condensing)	/
Notes: a) FFT=2048 cycle can be configured to 1024, 512, etc. b) One sampling per quarter-wave rotation; hardware supports half-circle sampling once (further settings can be updated via software).

Test result

The polarization measurement software interface (using a 1063 nm laser) shows that the polarization ellipse appears as linear polarization, with an ellipticity of 0.1°.

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The extinction ratio measurement software interface (using a 1063 nm laser) shows an extinction ratio of ER = 32.339 dB, and it can also be used for polarization adjustment in scenarios such as polarization-maintaining (PM) light.

Optional Configurations

Downloads

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