PT-1105E Dual-Frequency Laser Head
The PT-1105E is a precision frequency-stabilized dual-frequency laser head based on the Zeeman effect, providing stable orthogonal linearly polarized output. A built-in receiver, strong interference resistance and flexible installation make its compact, high-power design ideal for dual-frequency interferometers. It supports nanometer-level measurement and target speeds exceeding 1m/s, including CNC-machine verification and multiaxis displacement measurements. Thermal frequency stabilization based on the transverse Zeeman effect provides good polarization and high power, improving accuracy and increasing measurement-channel capacity. Internal control and reference-signal output use digital circuitry for high reliability and interference immunity. Combined with our other products, it forms systems for single-/multichannel displacement, small-angle, straightness and coaxiality measurement. Applications include inspection, calibration, error compensation and position control of single-/multiaxis stages, coordinate-measuring machines and CNC machines. The PT-1105E uses a He-Ne gas laser with a633nm vacuum wavelength. In a transverse magnetic field, the Zeeman effect splits atomic energy levels and optical frequencies, generating two different-frequency orthogonal linearly polarized waves. Their difference is the beat frequency. Precise laser-tube temperature control stabilizes both beat and optical frequencies.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Vacuum Wavelength [Typical] | 632.99076 nm |
| Wavelength Stability [Short-term] | 1×10⁻⁹ |
| Extended-Wavelength Uncertainty [K=2] | 3×10⁻⁸ |
| Beat Frequency [Customizable 3－4 MHz] | 1－3 MHz |
| Beat-Frequency Stability | ±0.5 kHz |
| Max Measurement Speed [Linear Interferometer] | 0.3－0.9 m/s |
| Output Power [Typical] | 0.7 mW |
| Beam diameter [Visible, Beam Waist] | 6 mm |
| Working distance [Linear Interferometer] | 20 m |
| Output Mode | Single Transverse Mode |
| Polarization characteristics | Orthogonal Linear Polarization |
| Polarization Mixing | <2％ |
Key Features
Datasheet
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Supplier Information
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