High-Speed LiTaO3 Optical Polarization Modulator Using Traveling-Wave Electrode and Double Periodic Poling Structure

Hiroshi MURATA; Asuka TAKAHASHI; Yasuyuki OKAMURA

doi:10.1587/transele.E92.C.212

Special Section on Recent Advances in Integrated Photonic Devices

High-Speed LiTaO₃ Optical Polarization Modulator Using Traveling-Wave Electrode and Double Periodic Poling Structure

Hiroshi MURATA, Asuka TAKAHASHI, Yasuyuki OKAMURA

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Keywords: polarization modulation, lithium tantalate (LiTaO₃), optical waveguide, traveling-wave modulation, polarization reversal

JOURNAL RESTRICTED ACCESS

2009 Volume E92.C Issue 2 Pages 212-216

DOI https://doi.org/10.1587/transele.E92.C.212

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Abstract

A new LiTaO₃ electro-optic polarization modulator utilizing traveling-wave electrodes and a double periodic poling structure is proposed. Utilizing the double periodic poling structure, both quasi-phase matching between TE and TM guided-modes, and quasi-velocity matching between a lightwave and a modulation microwave are obtainable at modulation frequencies over 10GHz.

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