skip to main content

Title: An active solid state ring laser gyroscope

The properties of an active, solid state ring laser gyroscope were investigated. Two laser diode pumped monolithic nonplanar ring oscillators (NPRO), forced to lase in opposite directions, formed the NPRO-Gyro. It was unique in being an active ring laser gyroscope with a homogeneously broadened gain medium. This work examined sources of technical and fundamental noise. Associated calculations accounted for aspects of the NPRO-Gyro performance, suggested design improvements, and outlined limitations. The work brought out the need to stabilize the NPRO environment in order to achieve performance goals. Two Nd:YAG NPROs were mounted within an environment short term stabilized to microdegrees Celsius. The Allan variance of the NPRO-Gyro beat note was 500 Hz for a one second time delay. Unequal treatment of the NPROs appeared as noise on the beat frequency, therefore reducing its rotation sensitivity. The sensitivity to rotation was limited by technical noise sources.
Authors:
Publication Date:
OSTI Identifier:
7283434
Resource Type:
Miscellaneous
Resource Relation:
Other Information: Thesis (Ph.D.)
Publisher:
Boulder, CO (United States); Univ. of Colorado
Research Org:
Colorado Univ., Boulder, CO (United States)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; GYROSCOPES; NOISE; RING LASERS; PERFORMANCE TESTING; SOLID STATE PHYSICS; LASERS; PHYSICS; TESTING 426000* -- Engineering-- Components, Electron Devices & Circuits-- (1990-)