Wide-bandwidth high-frequency electro-optic modulator based on periodically poled LiNbO[sub 3]

Lu, Yan-qing; Xiao, Min; Salamo, Gregory J.
February 2001
Applied Physics Letters;2/19/2001, Vol. 78 Issue 8, p1035
Academic Journal
We propose a high-frequency traveling-wave integrated electro-optic modulator based on a periodically poled LiNbO[sub 3]. The traveling velocity of the optical wave and the electrical wave velocity in the waveguide can be quasimatched due to the periodic structure. Using this design, a modulation frequency of several hundred GHz can be realized. Wide-bandwidth modulation is also achievable by employing an aperiodic domain grating. © 2001 American Institute of Physics.


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