Serrodyne optical frequency shifting for heterodyne self-mixing in a distributed-feedback fiber laser - Archive ouverte HAL Access content directly
Journal Articles Optics Letters Year : 2008

Serrodyne optical frequency shifting for heterodyne self-mixing in a distributed-feedback fiber laser

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Abstract

We describe an all-fiberized coherent detection system at 1.55 μm using heterodyne self-mixing modulation in a distributed-feedback fiber laser. Frequency shifting of the optical feedback is based on serrodyne phase modulation with an integrated electro-optic modulator, which is a significant advance in the simplification of the self-mixing detection scheme for class B lasers. Accurate measurement of the optical phase difference between the laser electric field and the backscattered electric field demonstrates nanometric displacement detection on noncooperative targets.
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Dates and versions

cea-00344373 , version 1 (04-12-2008)

Identifiers

  • HAL Id : cea-00344373 , version 1

Cite

Mathieu Laroche, Célia Bartolacci, Guillaume Lesueur, Hervé Gilles, Sylvain Girard. Serrodyne optical frequency shifting for heterodyne self-mixing in a distributed-feedback fiber laser. Optics Letters, 2008, 33, pp.2746-2748. ⟨cea-00344373⟩
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