Abstract
We present experimental investigations of the dynamical properties of semiconductor optical amplifiers (SOAs) and their impacts in all-optical signal processing using SOAs. We introduce ultrafast optical signal characterization techniques to fully characterize the gain and phase dynamics of SOAs. We elucidate a consequence of the slow carrier recovery as pattern-dependent phase fluctuation in wavelength conversion of ON-OFF-keyed signals. We also analyze the conversion of the phase fluctuation into amplitude fluctuation limiting the performance of all-optical XOR operation. Finally, the performance of all-optical wavelength conversion of differential phase-shift-keyed signals is presented with emphasis on regeneration of the phase information.
Original language | English (US) |
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Article number | 4538038 |
Pages (from-to) | 758-769 |
Number of pages | 12 |
Journal | IEEE Journal on Selected Topics in Quantum Electronics |
Volume | 14 |
Issue number | 3 |
DOIs | |
State | Published - May 2008 |
Keywords
- Differential phase shift keying (DPSK)
- Optical logic devices
- Optical sampling
- Optical signal processing
- Phase shift keying (PSK)
- Semiconductor optical amplifier (SOA)
- Ultrafast pulse characterization
- Wavelength conversion
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering