The He-Ne laser with iodine cell is a source of а frequency stabilized 127J2 continuous transition of coherent monochromatic radiation in the red light.
The He-Ne laser with iodine cell is used for applications as a source of coherent radiation to ensure the uniformity of measures in linear interferometric measurements.
The laser is a climatic version of “UHL” category 4.2 (temperate and cold climate) as per GOST Standard 15.150-69.
Basic technical specifications:
Laser spectra | single-wavelength |
Laser radiation intensity, W | 0.3 × 10–3 |
Relative instability of laser radiation intensity for 8 hours of continuous operation, % | ≤ 2%* |
Laser radiation wavelength, µm | 0.6329914 |
Relative instability of laser radiation frequency for 8 hours of continuous operation, no more | 3 × 10–11* |
Relative error of laser radiation wavelength reproduction within 1 year, no more | 7 × 10–3 |
The difference of laser radiation at the level of 0.1 rad, no more | 1.5 × 10–3 |
Standby time, h, no more | 1 |
Nonfailure operating time, h, no more | 300 |
Mean life, h | 3000 |
Power supply | 220V ± 10%, 50 Hz |
*The parameters are provided when changes in ambient temperature reach no more than ± 2°C during laser operation.
Structurally, the Не-Ne/127/J2 laser is disposed in the outer case
The base of the Не-Ne/127/J2 laser is an invar resonator with external spherical mirrors. There is a rigidly fixed active element, which is a gas-discharge tube with a cold cathode and an absorbing cell filled with a molecular iodine isotope 127/J2, inside the resonator, strictly along its axis.
