Wideband fiber-interferometer stabilization with variable phase

Amir Rosenthal; Stephan Kellnberger; George Sergiadis; Vasilis Ntziachristos

doi:10.1109/LPT.2012.2207099

Wideband fiber-interferometer stabilization with variable phase

Amir Rosenthal
, Stephan Kellnberger
, George Sergiadis
, Vasilis Ntziachristos

Chair of Biological Imaging

Technical University of Munich
Aristotle University of Thessaloniki

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

We report on a robust scheme for wideband variable-phase interferometer stabilization based on active modulation. In contrast to previous schemes, the correction signal is generated without using second harmonics, whose low amplitude often requires employing narrowband lock-in amplifiers. Resonances in the element modulating the phase are attenuated to enable high gain without high-frequency oscillations. Operation over a 3-kHz bandwidth is demonstrated.

Original language	English
Article number	6257460
Pages (from-to)	1499-1501
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	24
Issue number	17
DOIs	https://doi.org/10.1109/LPT.2012.2207099
State	Published - 2012

Keywords

Feedback circuits
interferometry
optical fibers

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10.1109/LPT.2012.2207099

Cite this

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title = "Wideband fiber-interferometer stabilization with variable phase",

abstract = "We report on a robust scheme for wideband variable-phase interferometer stabilization based on active modulation. In contrast to previous schemes, the correction signal is generated without using second harmonics, whose low amplitude often requires employing narrowband lock-in amplifiers. Resonances in the element modulating the phase are attenuated to enable high gain without high-frequency oscillations. Operation over a 3-kHz bandwidth is demonstrated.",

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AU - Rosenthal, Amir

AU - Kellnberger, Stephan

AU - Sergiadis, George

AU - Ntziachristos, Vasilis

PY - 2012

Y1 - 2012

N2 - We report on a robust scheme for wideband variable-phase interferometer stabilization based on active modulation. In contrast to previous schemes, the correction signal is generated without using second harmonics, whose low amplitude often requires employing narrowband lock-in amplifiers. Resonances in the element modulating the phase are attenuated to enable high gain without high-frequency oscillations. Operation over a 3-kHz bandwidth is demonstrated.

AB - We report on a robust scheme for wideband variable-phase interferometer stabilization based on active modulation. In contrast to previous schemes, the correction signal is generated without using second harmonics, whose low amplitude often requires employing narrowband lock-in amplifiers. Resonances in the element modulating the phase are attenuated to enable high gain without high-frequency oscillations. Operation over a 3-kHz bandwidth is demonstrated.

KW - Feedback circuits

KW - interferometry

KW - optical fibers

UR - https://www.scopus.com/pages/publications/84864930764

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DO - 10.1109/LPT.2012.2207099

M3 - Article

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 17

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ER -

Wideband fiber-interferometer stabilization with variable phase

Abstract

Keywords

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