Abstract
Integrated optical crossconnects and add-drop multiplexers require low-loss
polarization independent MZI space switches. We have developed a quantum well
material in which the electrorefraction due to the Quantum Confined Stark Effect and
bandfilling are added. The operating wavelength in an undoped InGaAs/InAsP quantum
well was first determined by limiting the excess waveguide loss to 0.2 dB/cm and the
electroabsorption loss to 0.1 dB/mm. Without doping, a polarization independent Dn of
7.8.10-4 was obtained at 100 kV/cm. Bandfilling increases Dn to 2.10-3 at 100 kV/cm,
resulting in a phase shifter length of 0.46 mm in push pull configuration.
Original language | English |
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Title of host publication | Proceedings of the 6th annual symposium of the IEEE/LEOS Benelux Chapter, 3-18 December 2001, Brussels, Belgium |
Editors | H. Thienpont, F. Berghmans, J. Danckaert, L. Desmet |
Pages | 21-24 |
Publication status | Published - 2001 |
Event | 6th Annual Symposium of the IEEE/LEOS Benelux Chapter - Brussels, Belgium Duration: 3 Dec 2001 → 3 Dec 2001 Conference number: 6 |
Conference
Conference | 6th Annual Symposium of the IEEE/LEOS Benelux Chapter |
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Country/Territory | Belgium |
City | Brussels |
Period | 3/12/01 → 3/12/01 |