Compact polarization-independent Mach-Zehnder space switch combining carrier depletion and the quantum confined Stark effect

We have developed an n-doped InGaAs-InAsP quantum well between InP, which is suited for a polarization-independent Mach-Zender interferometric (MZI) space switch operating at 1.55 /spl mu/m. The InAsP is compressively strained and the InGaAs is tensile strained for polarization independence and for...

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Veröffentlicht in:	IEEE journal of quantum electronics 2003-02, Vol.39 (2), p.379-383
Hauptverfasser:	Prasanth, R., Haverkort, J.E.M., Wolter, J.H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Boundary conditions Carrier confinement Carriers Crosstalk Depletion Exact sciences and technology Expenses Fundamental areas of phenomenology (including applications) Indium gallium arsenide Indium phosphide Noise levels Optical computers, logic elements, interconnects, switches neural networks Optical elements, devices, and systems Optics Physics Polarization Potential well Quantum wells Stark effect Switches Tensile strain Waveguides
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Zusammenfassung:	We have developed an n-doped InGaAs-InAsP quantum well between InP, which is suited for a polarization-independent Mach-Zender interferometric (MZI) space switch operating at 1.55 /spl mu/m. The InAsP is compressively strained and the InGaAs is tensile strained for polarization independence and for strain balancing. The important boundary condition for the design of this structure is the waveguide loss, which we limit to 0.6 dB/cm, and the crosstalk due to imbalance in the MZI, which we limit to
ISSN:	0018-9197 1558-1713
DOI:	10.1109/JQE.2002.807208