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Electrooptical Modulator Fabricated by Gallium Diffusion in Lithium Niobate
2008 / IEEE
This item was taken from the IEEE Periodical ' Electrooptical Modulator Fabricated by Gallium Diffusion in Lithium Niobate ' Mach-Zehnder modulators fabricated by gallium diffusion in y-cut lithium niobate (LiNbO) are presented. The measured halfwave voltages are 6.2 and 3.2 V when the electrode lengths are 0.4 and 0.8 cm, respectively. By calculating the overlap integral between the modulating electric and the guided optical fields, the value of the electrooptic coefficient is found in good agreement with that of the bulk LiNbO, which indicates no significant degradation in is induced by the in-diffused gallium atoms.
Electrooptical Modulator Fabrication
Voltage 6.2 V
Voltage 3.2 V
High Speed Optical Techniques
Photonics And Electrooptics
Engineered Materials, Dielectrics And Plasmas