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Linear electro-optic coefficient of a GaAs/Al0.4Ga0.6As phase modulator
- Issue Date
- Nov-2004
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- electro-optic; modulator; LEO; phase modulation; GaAs/AlGaAs
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.45, no.5, pp.1162 - 1164
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 45
- Number
- 5
- Start Page
- 1162
- End Page
- 1164
- ISSN
- 0374-4884
- Abstract
- Phase modulation has been measured in a single mode P-p-n-N GaAs/Al0.4Ga0.6As ridge-waveguide phase modulator. These measurements were performed at a wavelength of 1.31 mun for both TE and TM modes by using a Mach-Zehnder interferometer. Phase-modulation efficiencies are estimated to be 54.9 degrees/V.mm and 39.4 degrees/V.mm for TE and TM modes, respectively. These are the highest efficiencies reported to date for GaAs-based waveguide phase modulators at lambda = 1.31 mun. Finally, the electro-optic coefficient (gamma(41)) of 1.45 x 10(-10) cm/V is extracted from the measured phase shift difference between TE and TM modes.
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Related Researcher
- Yi, Jong Chang
- Engineering (Electronic & Electrical Engineering)