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Optics Letters

Optics Letters


  • Vol. 27, Iss. 4 — Feb. 15, 2002
  • pp: 222–224

Fiber Bragg grating—based self-referencing technique for wavelength-multiplexed intensity sensors

S. Abad, M. López-Amo, F. M. Araújo, L. A. Ferreira, and J. L. Santos  »View Author Affiliations

Optics Letters, Vol. 27, Issue 4, pp. 222-224 (2002)

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An amplitude—phase-conversion self-referencing technique for intensity-modulated photonic sensors that uses two different-wavelength fiber Bragg gratings is presented. With this technique, the system response has been demonstrated to be almost unafffected by network power variations as high as 90% of the total power launched by the source. We prove the multiplexing capability of this type of self-referenced fiber sensor by wavelength-division multiplexing two of them in a star network. A tunable fused biconical wavelength-division multiplexer is used for sensor addressing at the detection block, providing both good isolation and low cross-talk values.

© 2002 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.1480) Optical devices : Bragg reflectors

S. Abad, M. López-Amo, F. M. Araújo, L. A. Ferreira, and J. L. Santos, "Fiber Bragg grating—based self-referencing technique for wavelength-multiplexed intensity sensors," Opt. Lett. 27, 222-224 (2002)

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