Low-crosstalk penalty MZI space switch with a 0.64-mm phase shifter using quantum-well electrorefraction

Low-crosstalk penalty MZI space switch with a 0.64-mm phase shifter using quantum-well electrorefraction

We investigate Mach-Zehnder interferometric (MZI) space switches with quantum-well phase shifters. We find that the minimum phase shifter length is limited by additional crosstalk due to electroabsorption-induced imbalance in the MZI. This criterion also provides an optimal detuning between the band...

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Veröffentlicht in:IEEE photonics technology letters 2001-01, Vol.13 (1), p.37-39
Hauptverfasser: Dorren, B.H.P., Haverkort, J.E.M., Prasanth, R., Groen, F.H., Wolter, J.H.
Format: Artikel
Sprache:eng
Schlagworte:
Criteria
Crosstalk
Insertion loss
Integrated optics
Optical crosstalk
Optical interferometry
Optical losses
Optical switches
Optimization
Phase shifters
Phase shifting interferometry
Photonics
Quantum wells
Switches
Telecommunication switching
Wavelengths
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Beschreibung
Zusammenfassung:We investigate Mach-Zehnder interferometric (MZI) space switches with quantum-well phase shifters. We find that the minimum phase shifter length is limited by additional crosstalk due to electroabsorption-induced imbalance in the MZI. This criterion also provides an optimal detuning between the bandgap and the operating wavelength of the MZI. Finally, we present a novel MZI with an ultrashort 0.64-mm phase shifter.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.903213