| Autor: |
Marina A. Ponomareva, Valery I. Nalivaiko |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Interexpo GEO-Siberia. 8:146-152 |
| ISSN: |
2618-981X |
| DOI: |
10.33764/2618-981x-2020-8-1-146-152 |
| Popis: |
The paper describes a modernized optoelectronic system for stabilizing the interference pattern during exposure of a holographic grating. The results of applying the extreme control system to stabilize the interference field when recording holographic gratings of high optical quality are presented. Thin chalcogenide layers of the composition As2S3 were used as the recording medium. When using the stabilization system, a monotonic increase in the diffraction efficiency of the gratings from the recording time is observed and a low level of spurious scattering is recorded for the recorded gratings. The scheme was experimentally tested when recording holographic gratings up to 60x60 mm2 in size and exposure time up to 30 minutes. The use of an active stabilization scheme will make it possible to record large-size gratings using low-power lasers without the use of additional complex systems for protecting optical circuits from vibration. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
