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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 4 — Feb. 15, 2010
  • pp: 484–486

Thermally tunable lithium-niobate long-period waveguide grating filter fabricated by reactive ion etching

Wei Jin, Kin Seng Chiang, and Qing Liu  »View Author Affiliations

Optics Letters, Vol. 35, Issue 4, pp. 484-486 (2010)

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We fabricate a long-period grating band-rejection filter with a lithium niobate ( LiNbO 3 ) channel waveguide, where the grating is formed on the waveguide surface by plasma reactive ion etching. The filter shows three distinct thermal tuning regimes. Below 55 ° C , the center wavelength of the rejection band decreases linearly with an increase in the temperature at a high sensitivity ( 1.4   nm / ° C ) . The temperature sensitivity drops abruptly to a negligible value at 55 ° C and stays low up to 70 ° C , above which it jumps abruptly to a large positive value ( 1.6   nm / ° C ) . We attribute these peculiar tuning characteristics to the formation of different crystal phases in the core and cladding areas of the LiNbO 3 waveguide and the abrupt transitions of the thermo-optic coefficients of some crystal phases. The grating could be developed into various kinds of integrated-optic filters and switches for application in optical signal processing.

© 2010 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(130.3730) Integrated optics : Lithium niobate
(230.7370) Optical devices : Waveguides
(130.7408) Integrated optics : Wavelength filtering devices
(230.7408) Optical devices : Wavelength filtering devices

ToC Category:
Integrated Optics

Original Manuscript: September 17, 2009
Revised Manuscript: December 15, 2009
Manuscript Accepted: December 23, 2009
Published: February 4, 2010

Wei Jin, Kin Seng Chiang, and Qing Liu, "Thermally tunable lithium-niobate long-period waveguide grating filter fabricated by reactive ion etching," Opt. Lett. 35, 484-486 (2010)

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  1. L. Arizmendi, Phys. Status Solidi A 201, 253 (2004). [CrossRef]
  2. J. Sochtig, Electron. Lett. 24, 844 (1988). [CrossRef]
  3. P. Arora, V. M. Petrov, J. Petter, and T. Tschudi, Opt. Commun. 281, 2067 (2008). [CrossRef]
  4. B. E. Benkelfat, R. Ferrière, B. Wacogne, and P. Mollier, IEEE Photon. Technol. Lett. 14, 1430 (2002). [CrossRef]
  5. V. Rastogi and K. S. Chiang, Appl. Opt. 41, 6351 (2002). [CrossRef] [PubMed]
  6. K. S. Chiang, K. P. Lor, C. K. Chow, H. P. Chan, V. Rastogi, and Y. M. Chu, IEEE Photon. Technol. Lett. 15, 1094 (2003). [CrossRef]
  7. Q. Liu, K. S. Chiang, and K. P. Lor, Opt. Lett. 31, 2716 (2006). [CrossRef] [PubMed]
  8. W. Jin, K. S. Chiang, Q. Liu, C. K. Chow, H. P. Chan, and K. P. Lor, IEEE Photon. Technol. Lett. 20, 1258 (2008). [CrossRef]
  9. W. Jin, K. S. Chiang, and Q. Liu, Opt. Express 20, 1258 (2008).
  10. K. S. Chiang, J. Lightwave Technol. 3, 385 (1985). [CrossRef]
  11. K. S. Chiang and S. Y. Cheng, Opt. Eng. 47, 034601 (2008). [CrossRef]
  12. P. W. Leech and M. C. Ridgway, J. Vac. Sci. Technol. A 17, 3358 (1999). [CrossRef]
  13. M. Tamura and S. Yoshikado, Surf. Coat. Technol. 169-170, 203 (2003). [CrossRef]
  14. Y. N. Korkishko and V. A. Fedorov, IEEE J. Sel. Top. Quantum Electron. 2, 187 (1996). [CrossRef]
  15. A. Alcazarde, B. Ramiro, J. Rams, B. Alonso, G. Rojo, V. Bermudez, and J. M. Cabrera, Appl. Phys. B 79, 845 (2004). [CrossRef]

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