Abstract
We report all-optical switching due to state-filling in quantum dots (QDs) within a Mach-
Zehnder Interferometric (MZI) switch. The MZI was fabricated using InGaAsP/InP waveguides containing a single layer of InAs/InP QDs. A 1530- 1570 nm probe beam is switched by optical excitation of one MZI-arm. By exciting below the InGaAsP bandgap, we prove that the refractive index nonlinearity is entirely due to the QDs. The switching efficiency is 5 rad/(µW absorbed power).
Probe wavelength insensitivity was obtained using a broad size distribution of QDs.
Original language | English |
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Title of host publication | proc. Semiconductor Advances for Future Electronics (SAFE) 03 |
Place of Publication | Veldhoven, The Netherlands |
Publisher | STW Technology Foundation |
Pages | 635-638 |
ISBN (Print) | 90-73461-39-1 |
Publication status | Published - 2003 |
Event | Semiconductor Advances for Future Electronics (SAFE) 03 - Veldhoven, Netherlands Duration: 25 Nov 2003 → 26 Nov 2003 |
Conference
Conference | Semiconductor Advances for Future Electronics (SAFE) 03 |
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Country/Territory | Netherlands |
City | Veldhoven |
Period | 25/11/03 → 26/11/03 |