Abstract
We report the operation of an all-optical set–reset (SR) flip-flop based on vertical cavity semiconductor optical amplifiers (VCSOAs). This flip-flop is cascadable, has low optical switching power (~10 μW), and has the potential to be integrated on a small footprint (~100 μm2). The flip-flop is composed of two cross-coupled electrically pumped VCSOA inverters and uses the principles of cross-gain modulation, polarization gain anisotropy, and highly nonlinear gain characteristics to achieve flip-flop functionality. We believe that, when integrated on chip, this type of all-optical flip-flop opens new prospects for implementing all-optical fast memories and timing regeneration circuits.
Original language | English (US) |
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Pages (from-to) | 2969-2971 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 32 |
Issue number | 20 |
DOIs | |
State | Published - Oct 15 2007 |
Externally published | Yes |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics