Precision frequency measurements with interferometric weak values

David J. Starling, P. Ben Dixon, Andrew N. Jordan, John C. Howell

Research output: Contribution to journalArticlepeer-review

152 Scopus citations


We demonstrate an experiment which utilizes a Sagnac interferometer to measure a change in optical frequency of 129 ± 7 kHz/√Hz with only 2 mW of continuous-wave, single-mode input power. We describe the measurement of a weak value and show how even higher-frequency sensitivities may be obtained over a bandwidth of several nanometers. This technique has many possible applications, such as precision relative frequency measurements and laser locking without the use of atomic lines.

Original languageEnglish (US)
Article number063822
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number6
StatePublished - Dec 20 2010

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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