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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 10, Iss. 11 — Nov. 1, 1971
  • pp: 2495–2498

Photon-Noise-Limited Laser Transducer for Gravitational Antenna

G. E. Moss, L. R. Miller, and R. L. Forward  »View Author Affiliations


Applied Optics, Vol. 10, Issue 11, pp. 2495-2498 (1971)
http://dx.doi.org/10.1364/AO.10.002495


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Abstract

We have constructed and tested a laser interferometer transducer for a long, wideband, laser-linked gravitational radiation antenna. Photon-noise-limited performance was achieved using 80 μW from a single mode Spectra-Physics 119 laser in a modified Michelson interferometer on a vibration isolation table in a quiet room. A piezoelectric driver on one of the interferometer mirrors was used to generate subangstrom (3 × 10−14-m) vibrations of known amplitude. The measured displacement sensitivity of the system in the kilohertz region was 1.3 × 10 - 14 m / Hz 1 2, which compares well with the calculated photon noise limit of 1.06 × 10 - 14 m / Hz 1 2. This is the smallest vibrational displacement measured directly with a laser to date.

© 1971 Optical Society of America

History
Original Manuscript: April 2, 1971
Published: November 1, 1971

Citation
G. E. Moss, L. R. Miller, and R. L. Forward, "Photon-Noise-Limited Laser Transducer for Gravitational Antenna," Appl. Opt. 10, 2495-2498 (1971)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-10-11-2495

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