OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 22, Iss. 7 — Apr. 1, 1997
  • pp: 481–483

All-fiber absolute temperature sensor using an unbalanced high-birefringence Sagnac loop

E. De la Rosa, L. A. Zenteno, A. N. Starodumov, and D. Monzon  »View Author Affiliations


Optics Letters, Vol. 22, Issue 7, pp. 481-483 (1997)
http://dx.doi.org/10.1364/OL.22.000481


View Full Text Article

Acrobat PDF (254 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We demonstrate a highly sensitive temperature sensor based on a stress-induced high-birefringence-fiber Sagnac loop that uses a Nd-doped-fiber amplified spontaneous emission source. Relative temperature sensing is done in the spectral domain by shifts of a resonant wavelength λr and absolute temperature sensing by changes in separation between resonances Δλ . The measured relative change of these parameters with temperature in the range 15–110°C, is (1/λr)(δλrT) = -(1/Δλ)(δΔλ/δ T) ≈ (1/Δn)(δ ΔnT)(-0.94 ± 0.02) × 10-3/K, with measured fiber birefringence Δn = 8 × 10-4 . This gives a wavelength-shift sensitivity of -1.00 nm/K at 1.065 µm and a resonance separation sensitivity of 0.006 nm/K for Δλ = 6.8 nm . This telemetric point sensor has a loop length of 80 m, an operational bandwidth of more than 50 nm, and a temperature accuracy of better than 1 °C.

© 1997 Optical Society of America

Citation
E. De la Rosa, L. A. Zenteno, A. N. Starodumov, and D. Monzon, "All-fiber absolute temperature sensor using an unbalanced high-birefringence Sagnac loop," Opt. Lett. 22, 481-483 (1997)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-22-7-481

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

If you are accessing the full text through a member bundle, please use the Enhanced HTML link to gain access to the citation lists and other restricted features. Note that accessing both the PDF and HTML versions of an article will count as only one download against your account.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

If you are accessing the full text through a member bundle, please use the Enhanced HTML link to gain access to the citation lists and other restricted features. Note that accessing both the PDF and HTML versions of an article will count as only one download against your account.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

If you are accessing the full text through a member bundle, please use the Enhanced HTML link to gain access to the citation lists and other restricted features. Note that accessing both the PDF and HTML versions of an article will count as only one download against your account.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited