Abstract
An ON OFF-keying optical receiver with dual thresholds and an erasure zone is proposed. This configuration can be applied to track the optimized decision level adaptively and obtain additional coding gain from forward-error correction without increasing the code rate. Our analysis shows that in both unamplified and optically preamplified receivers, the required Q value for the bit-error rate of 10-12 can be reduced by 1.8 dB, if errors arise in burst nature and the optimized erasure zone width is around 7%-11% of the signal swing.
Original language | English |
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Pages (from-to) | 1592-1594 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 19 |
Issue number | 20 |
DOIs | |
Publication status | Published - Oct 2007 |
Externally published | Yes |
ASJC Scopus Subject Areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
Keywords
- Burst correction codes
- Forward-error correction (FEC)
- Optical receivers
- Threshold decoding