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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 19 — Sep. 20, 2004
  • pp: 4490–4495

Sagnac loop interferometer based on polarization maintaining photonic crystal fiber with reduced temperature sensitivity

Do-Hyun Kim and Jin U. Kang  »View Author Affiliations

Optics Express, Vol. 12, Issue 19, pp. 4490-4495 (2004)

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A Sagnac loop interferometer based on polarization-maintaining photonic crystal fiber was built and analyzed. Mainly the temperature dependence of the Sagnac loop filter function was measured and analyzed. By measuring the filtering function of the Sagnac loop as a function of the temperature over 200 °C, we deduced an unambiguous temperature dependent birefringence coefficient, dΔn/dT = -2.0 × 10-9 /K. Over the full temperature swing, the maximum peak shifts was less than 10% of the filter period. For comparison, a standard Sagnac loop was built with the exact same length and experimental condition, where we deduced dΔn/dT = -7.0 × 10-8 /K.

© 2004 Optical Society of America

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2400) Fiber optics and optical communications : Fiber properties

ToC Category:
Research Papers

Original Manuscript: August 10, 2004
Revised Manuscript: September 9, 2004
Published: September 20, 2004

Do-Hyun Kim and Jin Kang, "Sagnac loop interferometer based on polarization maintaining photonic crystal fiber with reduced temperature sensitivity," Opt. Express 12, 4490-4495 (2004)

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