Short wavelength operation of a 10 m perimeter ring laser gyroscope

被引：0

作者：

Zou, D. I. A. N. ^{[1
,2
]}

Thirkettle, Robert j. ^{[1
]}

Schreiber, K. Ulrich ^{[1
,2
,3
]}

Wells, Jon-Paul R. ^{[1
,2
]}

机构：

[1] Univ Canterbury, Sch Phys & Chem Sci, PB4800, Christchurch 8140, New Zealand

[2] Dodd Walls Ctr Photon & Quantum Technol, Dunedin, New Zealand

[3] Tech Universitaet Muenchen, Forschungseinrichtung Satellitengeodaesie Geodaet, D-93444 Bad Koetzting, Germany

来源：

APPLIED OPTICS | 2022年 / 61卷 / 35期

关键词：

Earth rotation - Gas pressures - Integration time - Performance - Pressure regime - Q-factors - Ring down time - Ring laser gyroscope - Rotation rate - Short wavelengths;

D O I：

10.1364/AO.474123

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the operation of a 10 m perimeter, helium-neon based ring laser gyroscope on the 3s2-+ 2p6 (611.8 nm) and 3s2-+ 2 p10 (543.4 nm) transitions of neon. Cavity Q factors of 1.5 x 1012 and 3.8 x 1011 are obtained for 611.8 and 543.4 nm operation, inferred from measured ring-down times of 485 and 110 mu s, respec-tively. For Sagnac frequencies, due to Earth rotation, of 205.14 and 230.96 Hz, minimum resolvable rotation rates of 80 and 226 prad/s are achieved for integration times of around 100 s. While environment limited performance is achieved for operation at 611.8 nm, it is found that a restrictive gas pressure regime must be utilized for the 543.4 nm lasing wavelength. As a consequence, the output photon count is low, which limits its intrinsic sensitivity for rotation rate measurements.(c) 2022 Optica Publishing Group

引用

页码：10588 / 10593

页数：6