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Detail
Journal Article
Stabilization of a long-armed fiber-optic single-photon interferometer
- Authors
- Seok Beom Cho, Tae Gon Noh
- Issue Date
- 2009-10
- Citation
- Optics Express, v.17, no.21, pp.19027-19032
- ISSN
- 1094-4087
- Publisher
- Optical Society of America(OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- We report on single-photon interference experiments in a Michelson-type interferometer built with two 6-km-long fiber spools, as well as on the active stabilization of the interferometer. A weak coherent light signal was (de-) multiplexed with a strong reference light using wavelength-division multiplexing technique, and real-time feedback control technique was applied for the reference light to actively stabilize the phase fluctuation in the long-armed fiber interferometer. The stabilized interferometer showed phase stability of 0.06 rad, which corresponds to an optical path length fluctuation of 15 nm between the 6-km-long interfering arms. The raw visibility obtained without subtracting noise counts in the single-photon interference experiment was more than 98% for stabilized conditions. ©2009 Optical Society of America.
- KSP Keywords
- 5 nm, Control technique, Fiber interferometer, Fiber-optic, Long fiber, Multiplexing technique, Phase stability, Reference light, Wavelength Division Multiplexed(WDM), active stabilization, division multiplexing
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
