LiNbO/sub 3/ Mach-Zehnder modulators with fixed negative chirp |
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Authors: | Pisu Jiang A.C. O'Donnell |
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Affiliation: | Integrated Opt. Component Ltd., Witham, UK; |
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Abstract: | Negative chirp modulation of optical transmitters is needed for the optimal performance of high bit-rate transmission in optical fiber systems operating at nonzero dispersion window at 1.5 /spl mu/m. In this paper several approaches to achieving any fixed chirp value for LiNbO/sub 3/ modulators are proposed, Experimental results of impedance matched devices on x-cut lithium niobate with chirp values of /spl plusmn/0.7 and /spl plusmn/1.0 are presented. By tuning the modulators bias point, the chirp value can be adjusted linearly around the designed value without degrading other performances. |
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