%0 Journal Article %T Electrooptic Modulators with Controlled Frequency Responses by Using Nonperiodically Polarization-Reversed Structure %A Ha Viet Pham %A Hiroshi Murata %A Yasuyuki Okamura %J Advances in OptoElectronics %D 2008 %I Hindawi Publishing Corporation %R 10.1155/2008/948294 %X We discuss a new method to design traveling-wave electrooptic modulators with controlled frequency responses using nonperiodically polarization-reversed structure. Using our method, the frequency responses of both magnitude and phase of modulation index are controllable. Several electrooptic modulators for advanced modulation formats such as duobinary modulation and wideband single-sideband modulation are proposed. %U http://www.hindawi.com/journals/aoe/2008/948294/