Sagnac Interferometer for Gravitational-Wave Detection

Ke-Xun Sun, M. M. Fejer, Eric Gustafson, and Robert L. Byer
Phys. Rev. Lett. 76, 3053 – Published 22 April 1996
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Abstract

We have investigated a zero-area Sagnac interferometer as a broad band gravitational-wave detector. Frequency response measurements of a laboratory-scale interferometer are in excellent agreement with theory. The measured contrast ratio, 0.996, is insensitive to induced birefringence, laser-frequency variation, arm imbalance, and dc mirror displacement. A near shot-noise-limited phase sensitivity of 3×109rad/Hz was measured at the interferometer's maximum sensitivity frequency, 90.9 MHz.

  • Received 21 August 1995

DOI:https://doi.org/10.1103/PhysRevLett.76.3053

©1996 American Physical Society

Authors & Affiliations

Ke-Xun Sun, M. M. Fejer, Eric Gustafson, and Robert L. Byer

  • Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305-4085

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Issue

Vol. 76, Iss. 17 — 22 April 1996

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