Design and Initial Operation of a 367-m2 Rectangular Ring Laser
Applied Optics, Vol. 41, Issue 9, pp. 1685-1688 (2002)
http://dx.doi.org/10.1364/AO.41.001685
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Abstract
The design and operation of a proof-of-principle rectangular He-Ne ring laser resonator with a cavity perimeter of 77.0 m and an area of ~367 m2 are described. With unevacuated beam lines this device gave an Earth-induced Sagnac frequency of 1513 Hz, with a relative Allan deviation over 1000 s down to 3 parts per million. The Earth’s rotation provided a bias that eliminated the lock-in susceptibility. The use of increased pressure in the plasma tube facilitated single-mode operation by increasing the homogeneous pressure-broadened linewidth.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(000.2190) General : Experimental physics
(140.3560) Lasers and laser optics : Lasers, ring
Citation
Robert W. Dunn, Dmitry E. Shabalin, Robert J. Thirkettle, Graeme J. MacDonald, Geoffrey E. Stedman, and K. Ulrich Schreiber, "Design and Initial Operation of a 367-m2 Rectangular Ring Laser," Appl. Opt. 41, 1685-1688 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-9-1685
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