Self-locked operation of large He–Ne ring laser gyroscopes
Autor: | Karl Ulrich Schreiber, Robert B. Hurst, J. Holdaway, R. D. Graham, Jon-Paul R. Wells, Nishanthan Rabeendran |
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Rok vydání: | 2012 |
Předmět: | |
Zdroj: | Metrologia. 49:209-212 |
ISSN: | 1681-7575 0026-1394 |
Popis: | Helium–neon ring laser gyroscopes have been observed to produce a stable and useful Sagnac beat signal while operating with multiple longitudinal modes through a mode-locking mechanism. The parameter space pertaining to stable operation with respect to gas pressure and intra-cavity power has been explored experimentally. Two regions of stability have been identified. The stability of large ring lasers operating with mode-locking has been characterized. Mode-locked operation presents no statistically significant difference in performance compared with single-mode operation. It is shown that the time required for establishing stable mode-coupled operation can be a practical disadvantage for the ultra-large ring lasers. |
Databáze: | OpenAIRE |
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