Journal
QUANTUM ELECTRONICS
Volume 49, Issue 3, Pages 266-271Publisher
TURPION LTD
DOI: 10.1070/QEL16725
Keywords
electro-optic modulator; quantum-confined Stark effect; numerical simulation; integrated optics; radiophotonics
Funding
- Synopsys, Inc.
- Ministry of Science and Higher Education of the Russian Federation [RFMEFI58117X0026]
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An electro-optic Mach - Zehnder modulator based on the quantum-confinement Stark effect in layered multiple-quantum-well InAlGaAs structures on InP substrate is numerically simulated. The novelty of the modulator design is the use of a two-layer rib optical waveguides, which provide technologically efficient (loss of 1.5 dB per element) coupling of the modulator with optical fibre. It is shown that, changing the electrode width and the distance between two waveguides in two Mach - Zehnder interferometer arms, one can match the impedance of the modulator with an external 50-Omega load and the velocities of microwave and optical waves in the modulator. The results of the study can be used in integrated optics, optical communication, and radiophotonics devices.
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