High-speed and low-driving-Voltage thin-sheet X-cut LiNbO/sub 3/ Modulator with laminated low-dielectric-constant adhesive |
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| Authors: | Jungo Kondo Aoki K Kondo A Ejiri T Iwata Y Hamajima A Mori T Mizuno Y Imaeda M Kozuka Y Mitomi O Minakata M |
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| Affiliation: | NGK Insulators Ltd., Aichi, Japan; |
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| Abstract: | We present a novel thin-sheet X-cut LiNbO/sub 3/ optical modulator structure which can be fabricated by precise polishing and lapping to obtain a thinner LiNbO/sub 3/ substrate for a lower driving voltage in addition to velocity matching and impedance matching. We demonstrated that the fabricated modulator had a driving voltage V/spl pi/ of 2 V and zero chirp for 40-Gb/s operation and had a high potential for suppressed dc drift, and long-term reliability. |
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