A new concept of electro-optically reconfigurable waveguide superimposed gratings with their widely controllable transmission characteristics are present. It is based on two types of superimposed refractive index gratings, electronically induced in an electro-optically active core. These gratings can be independently switched ON and OFF or both simultaneously activated with the controllable weighting factor. In this case its transmission characteristics represent double-dip rejection band spectrum with independent control of the dip positions and bandwidth. This simple concept opens opportunities for developing a number of tunable devices for integrated optics by use of the proposed design as a building block.

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1. M. Kulishov, P. Cheben, X. Daxhelet, S. Delprat, "Electro-optically induced tilted phase gratings in waveguide," J. Opt. Soc. Am. B 18, 457-464 (2001). [CrossRef]
2. M. Kulishov, "Interdigitated electrode-induced phase grating with an electrically switchable and tunable period," Appl. Opt. 38, 7356-7363 (1998). [CrossRef]
3. T. Erdogan, "Fiber grating spectra," J. Lightwave Techn. 15, 1277-1294 (1997). [CrossRef]
4. P. Cheben, F. del Monte, D. J. Worsfold, D. Carrisson, C. P. Grover, J. D. Mackenzie, "A photorefractive organically modified silica glasses with high optical gain," Nature 2000, 408, 64-66 (2000). [CrossRef] [PubMed]
5. J. Zhao, X. Shen, Y. Xia, "Beam splitting, combining and cross coupling through multiple superimposed volume index gratings," Opt. & Laser Technol. 33, 23-28 (2001) [CrossRef]

Other

• M. Kulishov, P. Cheben, X. Daxhelet, S. Delprat, "Electro-optically induced tilted phase gratings in waveguide," J. Opt. Soc. Am. B 18, 457-464 (2001). [CrossRef]
• M. Kulishov, "Interdigitated electrode-induced phase grating with an electrically switchable and tunable period," Appl. Opt. 38, 7356-7363 (1998). [CrossRef]
• T. Erdogan, "Fiber grating spectra," J. Lightwave Techn. 15, 1277-1294 (1997). [CrossRef]
• P. Cheben, F. del Monte, D. J. Worsfold, D. Carrisson, C. P. Grover, J. D. Mackenzie, "A photorefractive organically modified silica glasses with high optical gain," Nature 2000, 408, 64-66 (2000). [CrossRef] [PubMed]
• J. Zhao, X. Shen, Y. Xia, "Beam splitting, combining and cross coupling through multiple superimposed volume index gratings," Opt. & Laser Technol. 33, 23-28 (2001) [CrossRef]

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