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Applied Optics

Applied Optics


  • Vol. 41, Iss. 19 — Jul. 1, 2002
  • pp: 3804–3808

Single-crystal Y2O3-ZrO2 rectangular waveguides for ultrahigh-temperature sensing applications

Limin Tong  »View Author Affiliations

Applied Optics, Vol. 41, Issue 19, pp. 3804-3808 (2002)

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High-quality Y2O3–ZrO2 single-crystal rectangular waveguides have been developed for ultrahigh-temperature sensing applications. Five waveguides, 0.55–1.12 mm wide and 52–65 mm long, were fabricated from a bulky cubic 21.2-mol. % Y2O3 stabilized ZrO2 single crystal that had been precisely cut and finely polished. At 900-nm wavelength, the average optical loss of these waveguides is approximately 0.016 dB/cm, which is much lower than that of Y2O3–ZrO2 single-crystal optical fibers grown by the laser-heated pedestal growth method. The tested waveguides survived a temperature higher than 2300 °C, and their mechanical strength and chemical resistance were also acceptable. Experimental results show that these waveguides are promising for ultrahigh-temperature sensing applications.

© 2002 Optical Society of America

OCIS Codes
(060.2290) Fiber optics and optical communications : Fiber materials
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(160.4760) Materials : Optical properties
(220.5450) Optical design and fabrication : Polishing
(230.7370) Optical devices : Waveguides

Original Manuscript: August 7, 2001
Revised Manuscript: December 11, 2001
Published: July 1, 2002

Limin Tong, "Single-crystal Y2O3-ZrO2 rectangular waveguides for ultrahigh-temperature sensing applications," Appl. Opt. 41, 3804-3808 (2002)

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