The results of investigation of saturation spectrum of iodine <sup>127</sup>I<sub>2</sub> hyperfine transitions for 543 nm HeNe laser radiation are presented in paper. Commercially available internal mirror green HeNe laser tube emitting at 543.5 nm and short external absorption cell were used in investigations. The 19 absorption components were observed, the parameters of obtained components can be suitable for frequency stabilization of 543 nm HeNe laser.
In the report the arrangements of laser interferometers for machine history are presented; the laser interferometer LSP30 for investigation of geometry of machine tools, the setup for inspection of ball screw and laser liner for CNC machine. Outstanding feature of the interferometers is the stabilization system of laser frequency using surface stabilized ferroelectric liquid cells (SSFLC).
The results of mode spectrum investigations of commercial internal mirrors 543 nm HeNe laser are presented in this paper. Measurements of the laser Zeeman frequency were done for 543 nm HeNe laser tube placed in longitudinal magnetic field. Obtained results were applied for frequency stabilization of 543 nm HeNe commercial laser.
In the following paper we describe arrangements of laser interferometer for investigation of screws and for inspection of ball screws. We have constructed two of them, namely: the technological setup for investigations of screw in process of production and the ball screw inspection setup. The former one is used to measure the pitch of screws. The data gathered during measurement is used to calculate the parameters for grinding machine. The later setup is used for testing parameters of complete ball screws. The software supporting this setup makes calculation of parameters of tested ball screw and creation of reports possible. Additionally, the inspection setup is the one that the torque measuring arrangements have been integrated on. Both the arrangements and the software allow for measurements of all parameters during movement of nut in full travel length of the ball screw and make charts and reports.
The calibration system used for measurements of the frequency characteristics of 633 nm He-Ne lasers light is presented in the paper. The system consists of four blocks: the iodine stabilized He-Ne at 633 nm laser frequency standard, optoelectronic unit, microprocessor system and PC compatible computer. The presented system was applied for measurements of the frequency characteristics of the frequency stabilized He-Ne lasers used in the interferometric systems. The analysis of the obtained results is discussed in paper.
The laser interferometers are intended for high-precision measurement of distances and displacements. The calibration equipment for the definition of real meaning of the laser radiation wavelength and investigation of wavelength stability and reproducibility of the laser radiation in the laser interferometers is presented in paper. The laser radiation frequency was measured with the heterodyne method using the developed laser frequency iodine standard 633 nm. The system was used for calibration the frequency of the He-Ne Zeeman laser used in the two frequency laser interferometer.
The two frequency laser interferometer for the angle and straightness measurements is presented. The principles of the operation of this laser system is described. The system consists of the laser head, optical elements, meteo station and PC computer. The construction of the main elements of the system are discussed. The parameters of the angle and straightness measurements are presented and compared to the other systems.
The influence of the magnetic field on Zeeman frequency of the He-Ne laser is presented in this paper. The new method of frequency stabilization of He-Ne laser is proposed. The optimization procedure for obtaining optimum discrimination curve of the He-Ne laser is described.
The two frequency laser interferometer, using frequency stabilized HeNe laser 0.63 micrometers , is presented in this paper. The system consists of a laser head, meteo station, and measurement display. The laser system fundamentally measures linear displacement (distance) but can also measure velocity and angle. The resolution and the accuracy of measurements are comparable with parameters of lasers systems produced by Hewlett-Packard 5526A and Spindler & Hoyer ZLI 150.