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Optics Letters

Optics Letters


  • Vol. 21, Iss. 14 — Jul. 15, 1996
  • pp: 1020–1022

LP01–LP02 interferometric fiber-optic sensing using phase-dependent loss in a light tap

A. Sharma, R. Posey, L. Phillips, and D. Diggs  »View Author Affiliations

Optics Letters, Vol. 21, Issue 14, pp. 1020-1022 (1996)

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The intensity of light radiated from a fiber-optic light tap is observed to depend sensitively on the phase difference between LP01 and LP02 modes in a few-mode fiber. This observation is used to design a novel dual-mode interferometer in which light loss through the light tap is monitored, eliminating the need for a bulky spatial filter at the exit end of the fiber. Application of the device as an interferometric temperature sensor is described.

© 1996 Optical Society of America

Original Manuscript: January 16, 1996
Published: July 15, 1996

A. Sharma, R. Posey, L. Phillips, and D. Diggs, "LP01–LP02 interferometric fiber-optic sensing using phase-dependent loss in a light tap," Opt. Lett. 21, 1020-1022 (1996)

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