Abstract
We describe an oblique-incidence optical transmittance technique for determining the pointing stability of a laser. In this technique, we follow the angular drift of a monochromatic laser beam by measuring the relative changes in transmittance through a parallel fused quartz window for s and p polarized components of the beam in response to the drift. This method is shown in the present experiment to have the sensitivity to detect angular changes in the range of 2 μ radians (1 μ radian=10-6 radian). To demonstrate this technique, we measured the angular drifts of two commercial intensity-stabilized He-Ne lasers.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3714-3717 |
| Number of pages | 4 |
| Journal | Review of Scientific Instruments |
| Volume | 72 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2001 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Instrumentation
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Gray, J., Thomas, P., & Zhu, X. D. (2001). Laser pointing stability measured by an oblique-incidence optical transmittance difference technique. Review of Scientific Instruments, 72(9), 3714-3717. https://doi.org/10.1063/1.1394187