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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 14 — Jul. 4, 2011
  • pp: 13047–13055

Design of waveguide grating with ultrafast tunable index contrast

Sun Do Lim, In-Kag Hwang, Kwanil Lee, Byoung Yoon Kim, and Sang Bae Lee  »View Author Affiliations


Optics Express, Vol. 19, Issue 14, pp. 13047-13055 (2011)
http://dx.doi.org/10.1364/OE.19.013047


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Abstract

A long-period waveguide grating (LPWG) with a tunable index contrast is proposed. The design features a simple configuration that consists of a two-mode waveguide formed on periodically poled lithium niobate with an angle with respect to its domain wall and a traveling-wave electrode. In the design, the electrical traveling wave introduces a periodic change in the refractive index of waveguide, which functions as a long-period waveguide grating that couples between symmetric and anti-symmetric core modes. The index contrast of grating can be controlled by the traveling-wave intensity. For application to ultrafast device, structural parameters satisfying velocity and impedance matching conditions are numerically calculated.

© 2011 OSA

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(160.3730) Materials : Lithium niobate
(230.2090) Optical devices : Electro-optical devices
(230.7020) Optical devices : Traveling-wave devices
(250.7360) Optoelectronics : Waveguide modulators

ToC Category:
Optical Devices

History
Original Manuscript: January 24, 2011
Revised Manuscript: June 11, 2011
Manuscript Accepted: June 14, 2011
Published: June 22, 2011

Citation
Sun Do Lim, In-Kag Hwang, Kwanil Lee, Byoung Yoon Kim, and Sang Bae Lee, "Design of waveguide grating with ultrafast tunable index contrast," Opt. Express 19, 13047-13055 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-14-13047


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References

  1. Y. Jeong, B. Yang, B. Lee, H. S. Seo, S. Choi, and K. Oh, “Electrically controllable long-period liquid crystal fiber gratings,” IEEE Photon. Technol. Lett. 12(5), 519–521 (2000). [CrossRef]
  2. A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, and J. E. Sipe, “Long-period fiber gratings as band-rejection filters,” J. Lightwave Technol. 14(1), 58–65 (1996). [CrossRef]
  3. Y. W. Koh, S. H. Yun, and B. Y. Kim, “Strain effects on two-mode fiber gratings,” Opt. Lett. 18(7), 497–499 (1993). [CrossRef] [PubMed]
  4. C. Zhao, L. Xiao, J. Ju, M. S. Demokan, and W. Jin, “Strain and temperature characteristics of a long-period grating written in a photonic crystal fiber and its application as a temperature-insensitive strain sensor,” J. Lightwave Technol. 26(2), 220–227 (2008). [CrossRef]
  5. M. Yamada, N. Nada, M. Saitoh, and K. Watanabe, “First-order quasi-phase matched LiNbO3 waveguide periodically poled by applying an external field for efficient blue second-harmonic generation,” Appl. Phys. Lett. 62(5), 435–436 (1993). [CrossRef]
  6. Y. L. Lee, C. Jung, Y. C. Noh, I. Choi, D. K. Ko, J. Lee, H. Y. Lee, and H. Suche, “Wavelength selective single and dual-channel dropping in a periodically poled Ti:LiNbO3 waveguide,” Opt. Express 12(4), 701–707 (2004). [CrossRef] [PubMed]
  7. K. Kubota, J. Noda, and O. Mikami, “Traveling wave optical modulator using a directional coupler LiNbO3 waveguide,” IEEE J. Quantum Electron. 16(7), 754–760 (1980). [CrossRef]
  8. K. Noguchi, O. Mitomi, and H. Miyazawa, “Millimeter-wave Ti:LiNbO3 optical modulators,” J. Lightwave Technol. 16(4), 615–619 (1998). [CrossRef]
  9. H. G. Park, S. Y. Huang, and B. Y. Kim, “All optical intermodal switch using periodic coupling in a two-mode waveguide,” Opt. Lett. 14(16), 877–878 (1989). [CrossRef] [PubMed]
  10. J. N. Blake, B. Y. Kim, and H. J. Shaw, “Fiber-optic modal coupler using periodic microbending,” Opt. Lett. 11(3), 177–179 (1986). [CrossRef] [PubMed]
  11. B. Y. Kim, J. N. Blake, H. E. Engan, and H. J. Shaw, “All-fiber acousto-optic frequency shifter,” Opt. Lett. 11(6), 389–391 (1986). [CrossRef] [PubMed]
  12. R. S. Weis and T. K. Gaylord, “Lithium niobate: summary of physical properties and crystal structure,” Appl. Phys., A Mater. Sci. Process. 37(4), 191–203 (1985). [CrossRef]
  13. E. Wooten, K. Kissa, A. Yi-Yan, E. Murphy, D. Lafaw, P. Hallemeier, D. Maack, D. Attanasio, D. Fritz, G. McBrien, and D. Bossi, “A review of lithium niobate modulators for fiber-optic communication systems,” IEEE J. Sel. Top. Quantum Electron. 6(1), 69–82 (2000). [CrossRef]
  14. R.-C. Twu, C.-Y. Chang, and W.-S. Wang, “A Zn-diffused Mach–Zehnder modulator on lithium niobate at 1.55-μm wavelength,” Microw. Opt. Technol. Lett. 43(2), 142–144 (2004). [CrossRef]
  15. W. K. Burns, M. M. Howerton, R. P. Moeller, R. Krähenbühl, R. W. McElhanon, and A. S. Greenblatt, “Low drive voltage, broad-band LiNbO3 modulators with and without etched ridges,” J. Lightwave Technol. 17(12), 2551–2555 (1999). [CrossRef]
  16. K. O. Hill, B. Malo, K. A. Vineberg, F. Bilodeau, D. C. Johnson, and I. Skinner, “Efficient mode conversion in telecommunication fiber using externally written gratings,” Electron. Lett. 26(16), 1270–1272 (1990). [CrossRef]
  17. D. Őstling and H. E. Engan, “Narrow-band acousto-optic tunable filtering in a two-mode fiber,” Opt. Lett. 20(11), 1247–1249 (1995). [CrossRef] [PubMed]
  18. H. S. Park, K. Y. Song, S. H. Yun, and B. Y. Kim, “All-fiber wavelength-tunable acoustooptic switches based on intermodal coupling in fibers,” J. Lightwave Technol. 20(10), 1864–1868 (2002). [CrossRef]
  19. K. Kawano, T. Kitoh, O. Mitomi, T. Nozawa, and H. Jumonji, “A wide-band and low-driving-power phase modulator employing a Ti:LiNbO3 optical waveguide at 1.5 μm wavelength,” IEEE Photon. Technol. Lett. 1(2), 33–34 (1989). [CrossRef]

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