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Optical surface wave mode converters and modulators utilizing static strain-optic effects

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3 Author(s)
Yamanouchi, K. ; Cornell University, Ithaca, NY, USA ; Wakazono, K. ; Shibayama, Kimio

Periodic perturbations of dielectric waveguides can be obtained by an evaporated SiO2thin film grating through the static strain-optic effect. These waveguides are applied to TE-TM mode converters and modulators in Ti-diffused LiNbO3waveguides. Using a coupling length of 3 mm in an optical surface waveguide, we have demonstrated a TE-TM mode conversion efficiency of 80 percent and a TE-TM mode modulator with 100 percent modulation with an applied field of 2 V/μm. A theoretical analysis of a reflector for a semiconductor laser waveguide is also described.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:16 ,  Issue: 6 )