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Optics Letters

Optics Letters


  • Vol. 27, Iss. 8 — Apr. 15, 2002
  • pp: 598–600

Lock acquisition of a gravitational-wave interferometer

M. Evans, N. Mavalvala, P. Fritschel, R. Bork, B. Bhawal, R. Gustafson, W. Kells, M. Landry, D. Sigg, R. Weiss, S. Whitcomb, and H. Yamamoto  »View Author Affiliations

Optics Letters, Vol. 27, Issue 8, pp. 598-600 (2002)

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Interferometric gravitational-wave detectors, such as the Laser Interferometer Gravitational Wave Observatory (LIGO) detectors currently under construction, are based on kilometer-scale Michelson interferometers, with sensitivity that is enhanced by addition of multiple coupled optical resonators. Reducing the relative optic motions to bring the system to the resonant operating point is a significant challenge. We present a new approach to lock acquisition, used to lock a LIGO interferometer, whereby the sensor transformation matrix is dynamically calculated to sequentially bring the cavities into resonance.

© 2002 Optical Society of America

OCIS Codes
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(140.4780) Lasers and laser optics : Optical resonators

M. Evans, N. Mavalvala, P. Fritschel, R. Bork, B. Bhawal, R. Gustafson, W. Kells, M. Landry, D. Sigg, R. Weiss, S. Whitcomb, and H. Yamamoto, "Lock acquisition of a gravitational-wave interferometer," Opt. Lett. 27, 598-600 (2002)

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  1. B. C. Barish and R. Weiss, Phys. Today 52(10), 44 (1999).
  2. M. W. Regehr, F. J. Raab, and S. E. Whitcomb, Opt. Lett. 20, 1507 (1995).
  3. P. Fritschel, R. Bork, G. González, N. Mavalvala, D. Ouimette, H. Rong, D. Sigg, and M. Zucker, Appl. Opt. 40, 4988 (2001).
  4. J. Camp, L. Sievers, R. Bork, and J. Heefner, Opt. Lett. 20, 2463 (1995).
  5. M. Evans, “Lock acquisition in resonant optical interferometers,” Ph.D. dissertation (California Institute of Technology, Pasadena, Calif., 2001).

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