Browse > Article

Characteristic of $LiNbO_3$ Domain Inversion and Fabrication of Electrooptic Device Application using Domain Reversal  

Jeong, W.J. (School of Electrical and Computer Eng., University of Seoul)
Kim, W.K. (KETI)
Yang, W.S. (KETI)
Lee, H.M. (KETI)
Kwon, S.W. (Department of Materials Eng., Hankuk Aviation University)
Song, M.K. (Department of Materials Eng., Hankuk Aviation University)
Lee, H.Y. (KETI)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.44, no.3, 2007 , pp. 20-25 More about this Journal
Abstract
The periodic domain-inversion in the selective areas of $Ti:LiNbO_3$ Mach-Zender waveguides was performed and band-pass modulators and single sideband (SSB) modulators were fabricated by using domain-reversal. The domain wall velocity was precisely controlled by real-time analysis of a poling-induced response current under an applied voltage. The domain wall velocity was significantly affected by the crystal orientation of the domain wall propagation which influenced the final domain geometry. In a certain case, the decomposition of $LiNbO_3$ crystal was observed, for example, under the condition of too fast domain wall propagation. The fabricated band-pass modulator with a periodic domain-inversion structure showed the maximum modulation efficiency at 30.3 GHz with 5.1 GHz 3dB-bandwidth, and SSB modulator was measured to show 33 dB USB suppression over LSB at 5.8 GHz RF.
Keywords
domain-inversion; domain wall velocity; optical modulator; $LiNbO_3$;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Y. Zhu and N. Ming, 'Second-Harmonic Generation in a Fibonacci Optical Superlattice and the Dispersive Effect of the Refractive Index,' Phys. Rev. B, vol. 42, pp. 3676-3679, 1990   DOI   ScienceOn
2 L. E. Myers and W. R. Bosenberg, 'Periodically Poled Lithium Niobate and Quasi-Phase-Matched Optical Parametric Oscillator in Periodically Poled $LiNbO_3$,' IEEE J. Quantum Electron., vol. 33, pp. 1663-1672, 1997   DOI   ScienceOn
3 V. Ya. Shur, E. L. Rumyantsev, E. V. Nikolaeva, E. I. Shishkin, R. G. Batchko, M. M. Fejer, and R. L. Byer, 'Recent Achievements in Domain Engineering in Lithium Niobate and Lithium Tnatalate,' Ferroelectrics, vol. 257, pp. 191-202, 2001   DOI
4 H. Murata, K. Kaneda, Y. Okamura, '38GHz optical single-sideband modulation by using guided-wave electrooptic modulator with periodicpolarization reversal,' Proceedings of the conference on Lasers and Electro-Optics 2004, CThT10, pp. 293-295, May 2004
5 G. D. Miller, Ph.D. dissertation, Stanford University, 1998
6 W. K. Burns, W. McElhanon and L. Goldberg, 'Second Harmonic Generation in Field Poled, Quasi-Phase-Matched, Bulk $LiNbO_3$,' IEEE Photonics Tech. Lett. Vol. 6, No. 2, pp. 252-254 February 1994   DOI   ScienceOn
7 W. Wang, R. Tavlykaev, and R. V. Ramaswamy, 'Bandpass traveling-wave Mach-Zehnder modulator in $LiNbO_3$ with domain reversal,'IEEE Photonics Tech. Lett., vol. 9, no. 5, pp. 610-612, May 1997   DOI   ScienceOn
8 H. Murata and S. Yamamoto, 'Novel guided- Wave eletrooptic single-sideband modulator by using periodically domain-inverted structure in a long wavelength operation,' OFC 2003, MF53, 2003