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Measurement of small phase shifts using a single-mode optical-fiber interferometer

D A Jackson1, A Dandridge, S K Sheem

  • 1Naval Research Laboratory, Washington, DC 20375, USA.

Optics Letters
|August 21, 2009
PubMed

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Interference: Path Lengths01:10

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Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...