Signal-to-noise ratio improvement using a semiconductor optical regenerative amplifier (SORA) is characterized. It is demonstrated that for a noise-degraded return-to-zero differential phase-shift keying signal at 10 Gb/s the Q factor at the SORA's output is improved relative to its input for both the phase and amplitude noise cases. The Q-factor improvement is 1.6 dB in single-channel operation for the phase-noise only case and 0.55 dB for the amplified spontaneous emission noise-only case through the SORA.
- Differential phase-shift keying (DPSK)
- Optical regeneration
- Semiconductor optical amplifier (SOA)
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering