LASER MIRROR FOR A RING LASER GYROSCOPE

A laser mirror for a ring laser gyroscope (RLG) includes an intermediate optical coating, positioned within approximately a mid portion of the laser mirror for improving the performance of the RLG, and specifically for improving the reflectance of at least one wavelength emission. The properties of...

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Bibliographische Detailangaben
Hauptverfasser:	RAMBERG RANDY J, ANDERSON CARL DAVID
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES USING STIMULATED EMISSION ELECTRICITY GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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Beschreibung
Zusammenfassung:	A laser mirror for a ring laser gyroscope (RLG) includes an intermediate optical coating, positioned within approximately a mid portion of the laser mirror for improving the performance of the RLG, and specifically for improving the reflectance of at least one wavelength emission. The properties of the intermediate optical coating and its placement within the laser mirror results in a good reflection of a first predetermined wavelength emission wavelength, for example a 633 nanometer wavelength emission, and a poor reflection of a second predetermined wavelength emission, for example a 650 nanometer wavelength emission. In one embodiment, the intermediate optical coating includes a half-wave or a multiple half-wave thickness and is made from Zirconium Oxide.